Fix argv for webOS (libretro#17960)

Author: Uukrull

retroarch.c

@@ -7007,8 +7007,11 @@ static bool retroarch_parse_input_and_config(
       BSV_MOVIE_ARG NETPLAY_ARG DYNAMIC_ARG FFMPEG_RECORD_ARG CONFIG_FILE_ARG;
 
 #if defined(WEBOS)
-   argv                            = &(argv[1]);
-   argc                            = argc - 1;
+   if (argv[1][0] == '{')
+   {
+      argv                            = &(argv[1]);
+      argc                            = argc - 1;
+   }
 #endif
 
 #ifndef HAVE_MENU