Increase timeout for OnSubscriptionsChanged.

This CL increases the timeout for receiving the OnSubscriptionsChanged
signal from 2000ms to 5000ms in
CarrierConfigManagerTest#testCarrierConfigNameOverride. This increase is
requried for low-memory devices that do not receive the signal by the
previous deadline.

Bug: 161963269
Test: atest CarrierConfigManagerTest
Change-Id: I99292e3083017e4333e4166a4ccd626d28c8edf1
1 file changed