Qt: Fix bounded sync when sync to video is enabled
Qt: Fix bounded sync when sync to video is enabled

mgba-emu/mgba,Iniquitatis/mgba,libretro/mgba,Iniquitatis/mgba,mgba-emu/mgba,mgba-emu/mgba,libretro/mgba,Iniquitatis/mgba,mgba-emu/mgba,Iniquitatis/mgba,libretro/mgba,libretro/mgba,libretro/mgba