Merge "tethering: DAD Proxy Daemon" am: 72e81859f8

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1258645

Change-Id: Ib3bbe465b698feace1a3ec1f6588cfa7bff0c9fd
tree: d4384dae513273d473a99af62db36d0d1e92b53a
  1. Tethering/