Add NtpTrustedTime.forceRefresh(Network)

Add NtpTrustedTime.forceRefresh(Network). If a component that uses
NtpTrustedTime is monitoring network connectivity, it should probably
provide the network to be used, otherwise there is a non-obvious
relationship between the network being monitored and the network
actually used.

Only one user of NtpTrustedTime is updated here as the other,
GnssLocationProvider / NtpTimeHelper, is going to be refactored in an
upcoming commit. Leaving it using the forceRefresh() method that doesn't
take a parameter is not a regression.

Bug: 222295093
Test: atest core/tests/coretests/src/android/util/NtpTrustedTimeTest
Test: Treehugger
Change-Id: I51db528d06359c33335c874aca524f5adee3f3a7