Add #defines for VCK/VCP in common/helpers.h
Add #defines for VCK/VCP in common/helpers.h

Signed-off-by: Jasper St. Pierre <5d8f4442e5d567aed616eebcfe54d707f2ec5349@mecheye.net>

freedesktop-unofficial-mirror/xorg__test__xorg-integration-tests,freedesktop-unofficial-mirror/xorg__test__xorg-integration-tests,freedesktop-unofficial-mirror/xorg__test__xorg-integration-tests