Author: Xin Li <delphij@...>
Date: 2013-08-19 (Mon, 19 Aug 2013)
Restore original value of CAM's boot delay and instead extend root
mount's delay to 30 seconds from the default 3 seconds, in the hope
to address USB boot problem.
Note that we were not able to reproduce the problem at lab so we
need the community to help testing this.