shadowmountain: Add support for new mainboard

This patch includes changes to enable depthcharge for shadowmountain

BRANCH=NONE
TEST=Boots to kernel on shadowmountain

Change-Id: Idcd7f7ade56f45554042e918ef06e65d75b0aa0b
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2784300
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
5 files changed