Merge "Add Instant Tether network icon" into udc-qpr-dev am: a931a9bcb4 am: 31127e2960

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24122123

Change-Id: Id4a0892561579d5f8d4d789eb95971eae2850815
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>