Merge "[Telephony] Remove ACTION_MAIN for starting MobileNetworkActivity" into tm-dev am: 59c911f4ef

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/18482934

Change-Id: I07c43f48c961560dda151075119a58571b48aa6d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>