Increase the timer to cleanup stale entries so that we give ourselves more time
to receive the config from irond, rather than prematurely cleaning up entries.
5s value was too short anyway.
Decrease the TCP keepalive idle time to detect peer-down event earlier.

Change-Id: I3d17509138de2de29d12f7b9055cf61885102d43
Merge "Increase the timer to cleanup stale entries so that we give ourselves more time to receive the config from irond, rather than prematurely cleaning up entries. 5s value was too short anyway. Decrease the TCP keepalive idle time to detect peer-down event earlier." into R1.10