[Telephony Setting] Enable the Settings test case

Bug: 147464840
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AirplaneModePreferenceControllerTest
      make RunSettingsRoboTests ROBOTEST_FILTER=MobileNetworkPreferenceControllerTest

Change-Id: I192385b1d847323d18ebc621f29ccc65cd7473d8
3 files changed