Update default max time of waiting for network state to get updated.

It is updated to a non-zero value, so an activity will wait for the
network rules to get updated before starting.

Bug: 27803922
Test: runtest -c com.android.server.net.ConnOnActivityStartTest frameworks-services
Change-Id: Ie491dac08dd257232a3f87d9a1013d6593424752
1 file changed