New cores added in 1.6.3 and later overwrite retroarch config stub

[gingerbeardman]

there is an issue with cores added to 3DS in 1.6.3 and later

81 (1.6.3 and later) libretro/81-libretro#4
fuse (1.6.3 and later) libretro/fuse-libretro#43
np2kai (post 1.6.7 nightly only) libretro/libretro-meowPC98#24

I install them using FBI but they don't show in titles or as icons on the home screen.

It seems they all have the same unique id 0xBAC00 (which is the same as the retroarch_3ds config stub, so installing any of the above emulators overwrites that)

[gingerbeardman]

closed, see: libretro/RetroArch#5565

[gingerbeardman]

@Tatsuya79