[automerger skipped] Merge "Add utilities for network validation testing" into mainline-prod am: 8251cb87d0 -s ours

am skip reason: Change-Id Icd7829e680b2dddd1ddaa3dc2d946c14c20b5a15 with SHA-1 0e9b130cbc is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/12762404

Change-Id: Ieb55bcb7c7b2381b85fa5e54f0f46e7aa0c32764
tree: 01a5f1af176d7feb6b0e2ccfc6246a95101d2fa2
  1. tests/