GBA: Make sure axes are properly mapped and unmapped vis-a-vis buttons
GBA: Make sure axes are properly mapped and unmapped vis-a-vis buttons

Anty-Lemon/mgba,AdmiralCurtiss/mgba,sergiobenrocha2/mgba,jeremyherbert/mgba,libretro/mgba,nattthebear/mgba,mgba-emu/mgba,AdmiralCurtiss/mgba,jeremyherbert/mgba,jeremyherbert/mgba,jeremyherbert/mgba,iracigt/mgba,askotx/mgba,matthewbauer/mgba,Iniquitatis/mgba,zerofalcon/mgba,zerofalcon/mgba,MerryMage/mgba,cassos/mgba,sergiobenrocha2/mgba,sergiobenrocha2/mgba,cassos/mgba,nattthebear/mgba,fr500/mgba,zerofalcon/mgba,Iniquitatis/mgba,mgba-emu/mgba,libretro/mgba,MerryMage/mgba,Touched/mgba,askotx/mgba,Anty-Lemon/mgba,mgba-emu/mgba,iracigt/mgba,libretro/mgba,AdmiralCurtiss/mgba,libretro/mgba,bentley/mgba,Iniquitatis/mgba,Iniquitatis/mgba,sergiobenrocha2/mgba,iracigt/mgba,cassos/mgba,Touched/mgba,mgba-emu/mgba,Anty-Lemon/mgba,fr500/mgba,iracigt/mgba,libretro/mgba,askotx/mgba,Touched/mgba,matthewbauer/mgba,askotx/mgba,fr500/mgba,fr500/mgba,Anty-Lemon/mgba,sergiobenrocha2/mgba,MerryMage/mgba,bentley/mgba