CCL monitors CarrierService change with CarrierPrivilegesCallback am: a27fbe5f66

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/17715925

Change-Id: Iaf8ca79dc897cfb59e18ec9086ba0ad3fbdcb57c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>