Enhance TelephonyRcsService to only create needed features

1) When determining the features that should be added to an
RcsFeatureContainer, take into account that subscriptions
CarrierConfig. This will stop unnecessary polling for the
RcsFeature for subscriptions that are not configured to support
RCS in the first place.

2) Fix some of the logging

Bug: 149100088
Test: atest TeleServiceTests
Change-Id: Ieaa23ba002528c75b87af961f5af534b6589a130
6 files changed