snappy: add ANX74XX low power mode for different DRP state

Follow reef setting.

BUG=none
BRANCH=reef
TEST=make buildall

Change-Id: I94ee7ddc9a698e03d0f0b2872beee95cc836a7ae
Signed-off-by: Bruce.Wan <Bruce.Wan@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/444585
Commit-Ready: Chen Wisley <wisley.chen@quantatw.com>
Tested-by: Bruce Wan <Bruce.Wan@quantatw.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed