Merge pull request #4248 from hanno-arm/tls13_populate_transform

Fix and test compliance of TLS 1.3 record protection

library/ssl_misc.h

@@ -740,7 +740,8 @@ struct mbedtls_ssl_transform
 
 #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION)
     /* We need the Hello random bytes in order to re-derive keys from the
-     * Master Secret and other session info, see ssl_populate_transform() */
+     * Master Secret and other session info,
+     * see ssl_tls12_populate_transform() */
     unsigned char randbytes[64]; /*!< ServerHello.random+ClientHello.random */
 #endif /* MBEDTLS_SSL_CONTEXT_SERIALIZATION */
 };