Merge "Add tethering privileged test" am: af9ec640c9 am: adda81e88f am: c882e8c995

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1345361

Change-Id: I46e6a1514c9518ab1f308f129c27d53002793a32
tree: 0f0960399725424e7847056a4f767099d2a6b48d
  1. Tethering/