This patch adjusts timeouts in ConnectivityServiceTest to fix tests
known to fail spruriously.
Test: ran the following tests 500 times without observing any failure
- testBackgroundNetworks()
- testMultipleLingering()
- testPacketKeepalives()
- testSatisfiedNetworkRequestDoesNotTriggerOnUnavailable()
- testSatisfiedThenLostNetworkRequestDoesNotTriggerOnUnavailable()
Bug: 32561414
Change-Id: I184fe7189aac768a65b927cc42eefaf8b1b3f930
2ffbac43f4