Add default implementations for RcsUceAdapter methods

Bug: 111305845
Test: atest CtsTelephonyTestCases:RcsUceAdapterTest
Merged-In: I8d4def6c34bf5661521441ebe733f593f2eecd4b
Change-Id: I8d4def6c34bf5661521441ebe733f593f2eecd4b
2 files changed