3DS: Fix build
3DS: Fix build

sergiobenrocha2/mgba,mgba-emu/mgba,libretro/mgba,jeremyherbert/mgba,mgba-emu/mgba,fr500/mgba,jeremyherbert/mgba,libretro/mgba,sergiobenrocha2/mgba,libretro/mgba,Iniquitatis/mgba,fr500/mgba,Iniquitatis/mgba,fr500/mgba,libretro/mgba,sergiobenrocha2/mgba,Anty-Lemon/mgba,Anty-Lemon/mgba,iracigt/mgba,iracigt/mgba,Anty-Lemon/mgba,iracigt/mgba,jeremyherbert/mgba,Iniquitatis/mgba,fr500/mgba,sergiobenrocha2/mgba,mgba-emu/mgba,Anty-Lemon/mgba,mgba-emu/mgba,libretro/mgba,jeremyherbert/mgba,sergiobenrocha2/mgba,Iniquitatis/mgba,iracigt/mgba