GBA Video: Re-fix sprite blending
GBA Video: Re-fix sprite blending

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