Add 3 carrier cofigs for Supplementary Service over USSD project

add use_call_forwarding_ussd_bool, use_caller_id_ussd_bool,
call_waiting_service_class_int configs.

Bug: 112177857
Test: build pass
Change-Id: I93eae0d60c900164e434d58a2cd5dc01554a0c2d
1 file changed