soc/intel/{cannonlake, skylake}: Select Gen-6 PCH binding for SKL/CNL

This patch creates a glue layer between SOC and common block IPs in terms
of PCH. All common IP blocks now can be selected based on
SOC_INTEL_COMMON_PCH_BASE config option.

BUG=none
BRANCH=b:78109109
TEST=Build and boot Cannonlake RVP and EVE.

Change-Id: I4e1f009489f2d8338ae94b78d7e9eb3f88a85d99
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/26349
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2 files changed