Merge "Add setEthernetEnabled and its listener API" am: 3b4812350f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2027927

Change-Id: I9a11545a496ea6538fe1aab19ad9ffc05734556e
tree: e88e65ef11b151849b4a2a768cd9008bd6fcc963
  1. framework/
  2. framework-t/
  3. service-t/
  4. tests/