Mark older CapabilitiesCallback APIs as default

- Mark the existing RcsUceAdapter.CapabilitiesCallback APIs as
default. Otherwise, there is no way for apps to stop implementing
the existing APIs in favor of new APIs that include SipDetails.

- Not all apps actually require SipDetails, so we can keep the old
versions of the methods without deprecation

Bug: b/265170620
Test: atest CtsTelephonyTestCases:RcsUceAdapterTest
Change-Id: I8783f54f9e92d0484e6064f4cb16473a8edd41fe