soc/intel/cannonlake: Make use of Intel common Graphics block

TEST=Build and boot cannonlake rvp.

Change-Id: Iaa1314ae3fcb4a8a3b55a314e79511f5dcba163d
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/22617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2 files changed