SDL: Fix ^C not exiting emulator (SDL 2.0.4+ only)
SDL: Fix ^C not exiting emulator (SDL 2.0.4+ only)

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