atlas: power down system at PMIC on hibernate

this turns off most of the power rails at the PMIC in response to a
system hibernate request.

BUG=b:110237370
BRANCH=none
TEST=verified both the AP and EC power down

Change-Id: Ica830e15dfd2f80a3392afe29a079faa5e4d6ec9
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1096485
Commit-Ready: Caveh Jalali <caveh@google.com>
Tested-by: Caveh Jalali <caveh@google.com>
Reviewed-by: Caveh Jalali <caveh@google.com>
2 files changed