This patch update each Intel's platform makefiles to include GICv2
makefile instead of manually sourcing individual c files. This aligns
with latest changes from commit #1322dc94f7.

Signed-off-by: Abdul Halim, Muhammad Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: Ib1f446a6fc578f73a9ef86f9708ddf12d7d75f48