programs: remove usage of mbedtls_pk_wrap_as_opaque() from tests

This is replaced with: mbedtls_pk_get_psa_attributes() +
mbedtls_pk_import_into_psa() + mbedtls_pk_setup_opaque().

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index abf33de..f00a111 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -2708,12 +2708,10 @@
                                      &psa_alg, &psa_alg2,
                                      &psa_usage,
                                      mbedtls_pk_get_type(&pkey)) == 0) {
-            ret = mbedtls_pk_wrap_as_opaque(&pkey, &key_slot,
-                                            psa_alg, psa_usage, psa_alg2);
-
+            ret = pk_wrap_as_opaque(&pkey, psa_alg, psa_alg2, psa_usage, &key_slot);
             if (ret != 0) {
                 mbedtls_printf(" failed\n  !  "
-                               "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n",
+                               "pk_wrap_as_opaque returned -0x%x\n\n",
                                (unsigned int)  -ret);
                 goto exit;
             }
@@ -2727,12 +2725,10 @@
                                      &psa_alg, &psa_alg2,
                                      &psa_usage,
                                      mbedtls_pk_get_type(&pkey2)) == 0) {
-            ret = mbedtls_pk_wrap_as_opaque(&pkey2, &key_slot2,
-                                            psa_alg, psa_usage, psa_alg2);
-
+            ret = pk_wrap_as_opaque(&pkey2, psa_alg, psa_alg2, psa_usage, &key_slot2);
             if (ret != 0) {
                 mbedtls_printf(" failed\n  !  "
-                               "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n",
+                               "mbedtls_pk_get_psa_attributes returned -0x%x\n\n",
                                (unsigned int)  -ret);
                 goto exit;
             }