Bug 813596: support RIL_UNSOL_RESPONSE_NEW_BROADCAST_SMS
Bug 788928 - Part 1/4: support SMS messageRef & ackPdu
Bug 788928 - Part 2/4: support +CMS ERROR
Bug 788928 - Part 3/4: fix invalid RIL_Token in RIL_REQUEST_SMS_ACKNOWLEDGE
Bug 788928 - Part 4/4: process final response first