3DS: Add missing keys
3DS: Add missing keys

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