fastboot: Add alias command "oem Powerdown".

The "powerdown" is defined in fastboot protocol but most fastboot
clients don't support it. Instead of asking every client to upgrade, we
want to make an alias in the oem commands so most clients can run the
command without problem.

BUG=chrome-os-partner:42535
TEST=emerge-smaug depthcharge chromeos-bootimage; fastboot oem Powerdown
BRANCH=smaug

Change-Id: I34bfcedd74d211bd42cb5e7e442b0609f6b6551d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/291891
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
1 file changed