Merge "Use new test utilities from frameworks/libs/net" am: 2087f3eeb1 am: e532ab3e37 am: a2c6709c10

Original change: https://android-review.googlesource.com/c/platform/cts/+/1433985

Change-Id: Ie04848090c8b29cac39e8e4542772c3ea1f3f2d5
tree: 9ccfbd59fe35c6eb563ce93b3a159e01fb4f2b56
  1. tests/