Add register/unregister for selected satellite subscription changed event in PhoneInterfaceManager.

Bug: 378557737
Change-Id: Ie4a26b924ad6a3df4adb07f9207bdb97368f3316
Test: atest SatelliteManagerTest, SatelliteManagerTestOnMockService
FLAG: com.android.internal.telephony.flags.carrier_roaming_nb_iot_ntn
1 file changed