ssl_tls.c: Move mbedtls_ssl_set_calc_verify_md() to TLS 1.2 section

In ssl_tls.c, move mbedtls_ssl_set_calc_verify_md() under the
"if defined(MBEDTLS_SSL_PROTO_TLS1_2)" pre-processor directive
as it is specific to TLS 1.2.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 0679a70..c4a9a29 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4517,37 +4517,6 @@
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md )
-{
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-        return( -1 );
-
-    switch( md )
-    {
-#if defined(MBEDTLS_SHA384_C)
-        case MBEDTLS_SSL_HASH_SHA384:
-            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384;
-            break;
-#endif
-#if defined(MBEDTLS_SHA256_C)
-        case MBEDTLS_SSL_HASH_SHA256:
-            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256;
-            break;
-#endif
-        default:
-            return( -1 );
-    }
-
-    return 0;
-#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */
-    (void) ssl;
-    (void) md;
-
-    return( -1 );
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-}
-
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 int mbedtls_ssl_get_handshake_transcript( mbedtls_ssl_context *ssl,
                                           const mbedtls_md_type_t md,
@@ -5491,6 +5460,37 @@
     return( 0 );
 }
 
+int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md )
+{
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
+        return( -1 );
+
+    switch( md )
+    {
+#if defined(MBEDTLS_SHA384_C)
+        case MBEDTLS_SSL_HASH_SHA384:
+            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384;
+            break;
+#endif
+#if defined(MBEDTLS_SHA256_C)
+        case MBEDTLS_SSL_HASH_SHA256:
+            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256;
+            break;
+#endif
+        default:
+            return( -1 );
+    }
+
+    return 0;
+#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */
+    (void) ssl;
+    (void) md;
+
+    return( -1 );
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+}
+
 #if defined(MBEDTLS_SHA256_C)
 void ssl_calc_verify_tls_sha256( const mbedtls_ssl_context *ssl,
                                  unsigned char *hash,