Merge "Add CTS for NetworkAgentConfig#setSubscriberId" into sc-dev am: 323a05334b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/14639705

Change-Id: If01d91221d48ab6b12c688ee234fded218480b40
tree: 556fc023c441e5a557fde21d82a48d068090e82e
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING