Telephony: Use data and voice states for SPN

SPN display text is based on both voice service state
and data service state.
Eg - Voice service state is OOS and data service state
is IN_SERVICE. In such cases, both regStates need to be
considered to determine what to show in UI for SPN.
Fix the wrong CDMA carrier text in expanded status bar.
After updating operator, the expanded status bar will
update SPN
For GSM, SPN is "no service" if service is out of service.
For CDMA, SPN is CDMA carrier. Check current service
state whether out of service, if yes, display "no service"
instead of SPN.
CRs-Fixed: 711942, 532471

Change-Id: Ic46ac0c7e3af51a380bb2db5d71a71bf9595c2ec