Merge "Allow device owner to configure preferential network service" into tm-dev am: 47a78f3d am: ff8f90b7 am: e022e3e2 am: be6cade4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17877932



Change-Id: I4cffb661747bbb9bb2a5476aad771ec381374bfc
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>