veyron_brain: Increase powerup_ready to 15 seconds

Shutting down can take a long time. The workaround is to increase
powerup_ready time so that firmware_ConsecutiveBoot does not attempt
to power the system back on too early.

BUG=chrome-os-partner:45309
BRANCH=firmware-veyron
TEST=firmware_ConsecutiveBoot passes more reliably.

Signed-off-by: David Hendricks <dhendrix@chromium.org>
Change-Id: I6789528f65f23d4d47c899d9e7e5cc979343266e
Reviewed-on: https://chromium-review.googlesource.com/299754
Tested-by: Jiazi Yang <Tomato_Yang@asus.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
1 file changed