CMake: Add an option to enable OPK support
CMake: Add an option to enable OPK support

Signed-off-by: Paul Cercueil <a027184a55211cd23e3f3094f1fdc728df5e0500@crapouillou.net>

Harteex/ExLauncher,Harteex/ExLauncher,Harteex/ExLauncher