RCS Provisioning APIs for Single Registration

Bug: 154864150
Test: atest FrameworksTelephonyTests:com.telephony.ims.RcsConfigTest
Test: atest TeleServiceTests:com.android.phone.RcsProvisioningMonitorTest
Test: atest CtsTelephonyTestCases:android.telephony.ims.cts.ImsServiceTest
Merged-In: Ifbdc8bc0a9d6f08de17e375d3c9783e878d004a0
Change-Id: Ifbdc8bc0a9d6f08de17e375d3c9783e878d004a0