Increase big lock timeout to 180s

This increases the timeout period for waiting for the big lock
to a very large, paranoid value in case there are multiple
instances running and the chip/controller are very slow.

BUG=chrome-os-partner:32008
BRANCH=none
TEST=needs testing

Change-Id: I30b0e95f3b8ac4efad42f86fc673e6854c365d8d
Reviewed-on: https://chromium-review.googlesource.com/222939
Reviewed-by: Bryan Freed <bfreed@chromium.org>
Tested-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Commit-Queue: David Hendricks <dhendrix@chromium.org>
1 file changed