update headers

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/tests/include/alt-dummy/aes_alt.h b/tests/include/alt-dummy/aes_alt.h
index 21d85f1..dc47dd1 100644
--- a/tests/include/alt-dummy/aes_alt.h
+++ b/tests/include/alt-dummy/aes_alt.h
@@ -1,19 +1,7 @@
 /* aes_alt.h with dummy types for MBEDTLS_AES_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef AES_ALT_H
diff --git a/tests/include/alt-dummy/aria_alt.h b/tests/include/alt-dummy/aria_alt.h
index aabec9c..94db8c7 100644
--- a/tests/include/alt-dummy/aria_alt.h
+++ b/tests/include/alt-dummy/aria_alt.h
@@ -1,19 +1,7 @@
 /* aria_alt.h with dummy types for MBEDTLS_ARIA_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef ARIA_ALT_H
diff --git a/tests/include/alt-dummy/camellia_alt.h b/tests/include/alt-dummy/camellia_alt.h
index b42613b..97bc16b 100644
--- a/tests/include/alt-dummy/camellia_alt.h
+++ b/tests/include/alt-dummy/camellia_alt.h
@@ -1,19 +1,7 @@
 /* camellia_alt.h with dummy types for MBEDTLS_CAMELLIA_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef CAMELLIA_ALT_H
diff --git a/tests/include/alt-dummy/ccm_alt.h b/tests/include/alt-dummy/ccm_alt.h
index 5ec7d4e..c25f42b 100644
--- a/tests/include/alt-dummy/ccm_alt.h
+++ b/tests/include/alt-dummy/ccm_alt.h
@@ -1,19 +1,7 @@
 /* ccm_alt.h with dummy types for MBEDTLS_CCM_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef CCM_ALT_H
diff --git a/tests/include/alt-dummy/chacha20_alt.h b/tests/include/alt-dummy/chacha20_alt.h
index a53a330..6fd84d0 100644
--- a/tests/include/alt-dummy/chacha20_alt.h
+++ b/tests/include/alt-dummy/chacha20_alt.h
@@ -1,19 +1,7 @@
 /* chacha20_alt.h with dummy types for MBEDTLS_CHACHA20_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef CHACHA20_ALT_H
diff --git a/tests/include/alt-dummy/chachapoly_alt.h b/tests/include/alt-dummy/chachapoly_alt.h
index 584a421..de28ced 100644
--- a/tests/include/alt-dummy/chachapoly_alt.h
+++ b/tests/include/alt-dummy/chachapoly_alt.h
@@ -1,19 +1,7 @@
 /* chachapoly_alt.h with dummy types for MBEDTLS_CHACHAPOLY_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef CHACHAPOLY_ALT_H
diff --git a/tests/include/alt-dummy/cmac_alt.h b/tests/include/alt-dummy/cmac_alt.h
index 13c998d..68b53d7 100644
--- a/tests/include/alt-dummy/cmac_alt.h
+++ b/tests/include/alt-dummy/cmac_alt.h
@@ -1,19 +1,7 @@
 /* cmac_alt.h with dummy types for MBEDTLS_CMAC_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef CMAC_ALT_H
diff --git a/tests/include/alt-dummy/des_alt.h b/tests/include/alt-dummy/des_alt.h
index 3b8abe4..d079861 100644
--- a/tests/include/alt-dummy/des_alt.h
+++ b/tests/include/alt-dummy/des_alt.h
@@ -1,19 +1,7 @@
 /* des_alt.h with dummy types for MBEDTLS_DES_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  *
  */
 
diff --git a/tests/include/alt-dummy/dhm_alt.h b/tests/include/alt-dummy/dhm_alt.h
index ccb3bd3..3cb51d2 100644
--- a/tests/include/alt-dummy/dhm_alt.h
+++ b/tests/include/alt-dummy/dhm_alt.h
@@ -1,19 +1,7 @@
 /* dhm_alt.h with dummy types for MBEDTLS_DHM_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef DHM_ALT_H
diff --git a/tests/include/alt-dummy/ecjpake_alt.h b/tests/include/alt-dummy/ecjpake_alt.h
index 90c21da..4d75248 100644
--- a/tests/include/alt-dummy/ecjpake_alt.h
+++ b/tests/include/alt-dummy/ecjpake_alt.h
@@ -1,19 +1,7 @@
 /* ecjpake_alt.h with dummy types for MBEDTLS_ECJPAKE_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef ECJPAKE_ALT_H
diff --git a/tests/include/alt-dummy/ecp_alt.h b/tests/include/alt-dummy/ecp_alt.h
index 56c9810..d204b18 100644
--- a/tests/include/alt-dummy/ecp_alt.h
+++ b/tests/include/alt-dummy/ecp_alt.h
@@ -1,19 +1,7 @@
 /* ecp_alt.h with dummy types for MBEDTLS_ECP_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef ECP_ALT_H
diff --git a/tests/include/alt-dummy/gcm_alt.h b/tests/include/alt-dummy/gcm_alt.h
index 7be5b62..cfa73d2 100644
--- a/tests/include/alt-dummy/gcm_alt.h
+++ b/tests/include/alt-dummy/gcm_alt.h
@@ -1,19 +1,7 @@
 /* gcm_alt.h with dummy types for MBEDTLS_GCM_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef GCM_ALT_H
diff --git a/tests/include/alt-dummy/md5_alt.h b/tests/include/alt-dummy/md5_alt.h
index 1f3e5ed..e3a15d7 100644
--- a/tests/include/alt-dummy/md5_alt.h
+++ b/tests/include/alt-dummy/md5_alt.h
@@ -1,19 +1,7 @@
 /* md5_alt.h with dummy types for MBEDTLS_MD5_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef MD5_ALT_H
diff --git a/tests/include/alt-dummy/nist_kw_alt.h b/tests/include/alt-dummy/nist_kw_alt.h
index 8fec116..1274d40 100644
--- a/tests/include/alt-dummy/nist_kw_alt.h
+++ b/tests/include/alt-dummy/nist_kw_alt.h
@@ -1,19 +1,7 @@
 /* nist_kw_alt.h with dummy types for MBEDTLS_NIST_KW_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef NIST_KW_ALT_H
diff --git a/tests/include/alt-dummy/platform_alt.h b/tests/include/alt-dummy/platform_alt.h
index 836f299..6757392 100644
--- a/tests/include/alt-dummy/platform_alt.h
+++ b/tests/include/alt-dummy/platform_alt.h
@@ -1,19 +1,7 @@
 /* platform_alt.h with dummy types for MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef PLATFORM_ALT_H
diff --git a/tests/include/alt-dummy/poly1305_alt.h b/tests/include/alt-dummy/poly1305_alt.h
index 5a8295f..c8ed1bc 100644
--- a/tests/include/alt-dummy/poly1305_alt.h
+++ b/tests/include/alt-dummy/poly1305_alt.h
@@ -1,19 +1,7 @@
 /* poly1305_alt.h with dummy types for MBEDTLS_POLY1305_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef POLY1305_ALT_H
diff --git a/tests/include/alt-dummy/ripemd160_alt.h b/tests/include/alt-dummy/ripemd160_alt.h
index ca3b338..72ae47e 100644
--- a/tests/include/alt-dummy/ripemd160_alt.h
+++ b/tests/include/alt-dummy/ripemd160_alt.h
@@ -1,19 +1,7 @@
 /* ripemd160_alt.h with dummy types for MBEDTLS_RIPEMD160_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef RIPEMD160_ALT_H
diff --git a/tests/include/alt-dummy/rsa_alt.h b/tests/include/alt-dummy/rsa_alt.h
index 24f672b..eabc26d 100644
--- a/tests/include/alt-dummy/rsa_alt.h
+++ b/tests/include/alt-dummy/rsa_alt.h
@@ -1,19 +1,7 @@
 /* rsa_alt.h with dummy types for MBEDTLS_RSA_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef RSA_ALT_H
diff --git a/tests/include/alt-dummy/sha1_alt.h b/tests/include/alt-dummy/sha1_alt.h
index 36bf71d..d8ac971 100644
--- a/tests/include/alt-dummy/sha1_alt.h
+++ b/tests/include/alt-dummy/sha1_alt.h
@@ -1,19 +1,7 @@
 /* sha1_alt.h with dummy types for MBEDTLS_SHA1_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef SHA1_ALT_H
diff --git a/tests/include/alt-dummy/sha256_alt.h b/tests/include/alt-dummy/sha256_alt.h
index 304734b..b1900ad 100644
--- a/tests/include/alt-dummy/sha256_alt.h
+++ b/tests/include/alt-dummy/sha256_alt.h
@@ -1,19 +1,7 @@
 /* sha256_alt.h with dummy types for MBEDTLS_SHA256_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef SHA256_ALT_H
diff --git a/tests/include/alt-dummy/sha512_alt.h b/tests/include/alt-dummy/sha512_alt.h
index 13e5810..857bc91 100644
--- a/tests/include/alt-dummy/sha512_alt.h
+++ b/tests/include/alt-dummy/sha512_alt.h
@@ -1,19 +1,7 @@
 /* sha512_alt.h with dummy types for MBEDTLS_SHA512_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef SHA512_ALT_H
diff --git a/tests/include/alt-dummy/threading_alt.h b/tests/include/alt-dummy/threading_alt.h
index 4003506..07d5da4 100644
--- a/tests/include/alt-dummy/threading_alt.h
+++ b/tests/include/alt-dummy/threading_alt.h
@@ -1,19 +1,7 @@
 /* threading_alt.h with dummy types for MBEDTLS_THREADING_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef THREADING_ALT_H
diff --git a/tests/include/alt-dummy/timing_alt.h b/tests/include/alt-dummy/timing_alt.h
index 9d4e100..69bee60 100644
--- a/tests/include/alt-dummy/timing_alt.h
+++ b/tests/include/alt-dummy/timing_alt.h
@@ -1,19 +1,7 @@
 /* timing_alt.h with dummy types for MBEDTLS_TIMING_ALT */
 /*
  *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  */
 
 #ifndef TIMING_ALT_H