afc: Change wrong function return types to match header
afc: Change wrong function return types to match header

patweb/libimobiledevice,kalev/libimobiledevice,Tatsh/libimobiledevice,libimobiledevice-win32/libimobiledevice,libimobiledevice-win32/libimobiledevice,kalev/libimobiledevice,upbit/libimobiledevice,libimobiledevice-win32/libimobiledevice,patweb/libimobiledevice,upbit/libimobiledevice,kalev/libimobiledevice,libimobiledevice-win32/libimobiledevice,Tatsh/libimobiledevice,libimobiledevice/libimobiledevice,Tatsh/libimobiledevice,patweb/libimobiledevice,Tatsh/libimobiledevice,libimobiledevice/libimobiledevice,upbit/libimobiledevice