Merge changes from topics "decouple_feature_stat_listener",...

Merge changes from topics "decouple_feature_stat_listener", "ims_sms_keepmanager", "rm_ims_manager_old" am: 37562ee0 am: 61f7cf4a am: c6859172

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/1428096

Change-Id: I4c413b8a9aca42ce034b980df580ae639b93979e