[RCS UCE] Expose the RCS UCE publishing device's capabilities APIs

The RCS publishing device's capabilities APIs are exposed to be the SystemAPI and add the CTS for these APIs.

bug: 174187744
Test: atest -c CtsTelephonyTestCases:android.telephony.ims.cts.ImsServiceTest
Change-Id: I731dbe64614b91efa0002ffccb638b4a10f7c5f4
11 files changed