CMake: Fix PGO on non-GNU platforms
CMake: Fix PGO on non-GNU platforms

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