soc/intel: Add KBL-S MCH and some KBL PCH support

This patch adds the support for KBL-S MCH and Z270, H270, B250 and
Q250 PCH chips.

BUG=None
BRANCH=None
TEST=Boot with KBL-S CPU and B250/H270 PCHs.

Change-Id: If03abb215f225d648505e05274e2f08ff02cebdc
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Reviewed-on: https://review.coreboot.org/25305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
4 files changed