mainline:Replace serviceState.getDataRegState and getVoiceRegState

Replace serviceState.getVoiceRegState with getState
Replace serviceState.getDataRegState with getDataRegistrationState

Bug: 146637978
Test: atest ServiceStateTest (PASS)
atest PhoneStateListenerTest (PASS)
atest PhoneStateListenerExecutorTest (PASS)
atest GsmCdmaPhoneTest (PASS)

Change-Id: I9a064c250acbe57fb198ea4641837d99adb1931a
Merged-In: I9a064c250acbe57fb198ea4641837d99adb1931a