Initialize some SIO variables properly
Initialize some SIO variables properly

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