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 am: e0f2e8c1 am: 1d76ea20

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

Change-Id: I86eb968dd491f0059784c9468960d68e5d84dbd8