clockspeed: increase timeout for smtpclock

We're seeing greater than 1 second latencies in some venues.  While
increasing the timeout decreases the clock accuracy, it also unblocks
logging.

This is a stop-gap fix, the correct fix is to switch to a persistent
time daemon that can handle jitter and skew detection.

Bug: 34455653
Change-Id: Ib548dc13e48a2f1b1518a3b7bcdb303f6fbea6e3
1 file changed