Updated SatelliteModemInterface.

The following changes are made in this CL:
- SatelliteServiceController name is changed to SatelliteModemInterface
- The decision to use satellite service or phone object is moved from
  PhoneInterfaceManager to SatelliteModemInterface.
- Added new files in satellite module.

Bug: 269637555
Test: atest SatelliteManagerTest
Change-Id: Ica48001988ce3e60edc27e8a73e8293e4402e302