Merge branch 'release_internal'

* release_internal:
  Check X509 config before using the functions

Author: Arto Kinnunen

source/Security/protocols/tls_sec_prot/tls_sec_prot_lib.c

@@ -24,7 +24,7 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
-#if defined(MBEDTLS_SSL_TLS_C)
+#if defined(MBEDTLS_SSL_TLS_C) && defined(MBEDTLS_X509_CRT_PARSE_C)
 #define WS_MBEDTLS_SECURITY_ENABLED
 #endif