prefetch: handle STREAM_GET_TAGS

Signed-off-by: Thomas Guillem <thomas@gllm.fr>

modules/stream_filter/prefetch.c

@@ -383,6 +383,7 @@ static int Control(stream_t *stream, int query, va_list args)
             *va_arg(args, char **) = strdup(sys->content_type);
             return VLC_SUCCESS;
         case STREAM_GET_SIGNAL:
+        case STREAM_GET_TAGS:
             return VLC_EGENERIC;
         case STREAM_SET_PAUSE_STATE:
         {