ssl_test_lib: add function translate given opaque algoritms to psa

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index e0ee79d..618da51 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -240,6 +240,24 @@
  */
 int key_opaque_alg_parse( const char *arg, const char **alg1, const char **alg2 );
 
+/** Parse given opaque key algoritms to obtain psa algs and usage
+ *  that will be passed to mbedtls_pk_wrap_as_opaque().
+ *
+ *
+ * \param alg1          input string opaque key algorithm #1
+ * \param alg1          input string opaque key algorithm #2
+ * \param psa_alg1      output PSA algorithm #1
+ * \param psa_alg2      output PSA algorithm #2
+ * \param usage         output key usage
+ *
+ * \return              \c 0 on success.
+ * \return              \c 1 on parse failure.
+ */
+int key_opaque_set_alg_usage( const char *alg1, const char *alg2,
+                              psa_algorithm_t *psa_alg1,
+                              psa_algorithm_t *psa_alg2,
+                              psa_key_usage_t *usage );
+
 #if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
 /* The test implementation of the PSA external RNG is insecure. When
  * MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled, before using any PSA crypto