Increment SQL core-regress job timeouts

The seabase suite on cm5.1 platform is at the edge of the previous 3 hr timeout.
It passed earlier this week at 2:56, but then timed out the next day in the
middle of the final test. It had not yet started cleanup and shut-down of the
instance.

Change-Id: Ieb40f3b07c8bd5490463e93703040dee3f94c239