Merge "Move CarrierConfigLoader registrar call to init" am: 0d1ef468f9 am: b08ba46aac am: 795df2f8c3

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/1695047

Change-Id: I5a1af871cc044c5819f074b61c21779f8179575f