[MS34.1] Replace TelephonyManager#getSubscriberId(subId) with public API

Test: atest com.android.server.net.NetworkStatsSubscriptionsMonitorTest
Bug: 204830222
Change-Id: I57aa4470aea1715217fa7d74f2c9067b096d1bae
1 file changed
tree: ee8f1b46f553fc4d70485f8fe37c8edfc04b7bd4
  1. core/
  2. framework/
  3. framework-t/
  4. service-t/
  5. services/
  6. tests/