Merge "Refacotr mobile data observer for repository" into main am: 12d49a52

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/3059652



Change-Id: I50454802ab304a46699c0754fa077b79d637bc9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>