Telephony: Add TD-SCDMA support

Add  network mode TD-SCDMA to the list
of supported network modes.
CRs-Fixed: 479310

Change-Id: I132ac6a2108ef641ce4e71942a5c057a8df8e76c
Telephony: Add RIL request and event for OMH support

Change-Id: I8f68d6d9e1e188a2c2295a814376dccaaad5ec24
Telephony(MSIM): Set priority when send sms

Add the priority support in 3gpp2 text message

Change-Id: I27e92709a04a89c125424f99c2c61fbf6802c6b1