The DataDuringCallsPreferenceController didn't listen the mobile data changed and update the preference.
Bug: 149344454
Test: make RunSettingsRoboTests ROBOTEST_FILTER=DataDuringCallsPreferenceControllerTest
Merged-In: I0121f06efb5257dccc05ad06b93a9db263f012b5
Change-Id: I6c8802aeb7b4f4850cb143e70a9e06de9fd93902