GB Video: Fix sprite rendering with BG priority
GB Video: Fix sprite rendering with BG priority

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