Fix tethering unit test fail in R am: 9eac605333

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1711436

Change-Id: I4a6c05d5b12ef159367e70df661fa2d386124fa9
tree: 99cfb0d359314c043e55d2474f458c593bb12a41
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING