CHROMIUM: Add suspend/resume for falcon clients

If the falcon client was active at the time of suspend, reload and restart
the firmware upon resume.

BUG=chrome-os-partner:40741,chrome-os-partner:41248
TEST=suspend via "echo mem > /sys/power/state", and resume via power button.
Made sure firmware is booted.

Change-Id: I95b216cc61719211aa46262ddfac875a48a96453
Signed-off-by: Andrew Chew <achew@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/289903
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
4 files changed