Merge "Fix null DadProxy failure in R Tethering unit test" am: 220e7854bd

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1485808

Change-Id: I5d40f774391b43b51c8945ca93c8d34a3b8312d2
tree: fd456ab901bd5fa78083f3392e9441f743a7d3d5
  1. tests/
  2. Tethering/