Add CTS coverage for VpnTransportInfo. am: e9aeb3c1c5 am: fc5b95502b

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1570841

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I46ac659c13f40d59a304bfd2931e0306d5704c2c
tree: 1734dd719f9f4dcd48e60f6271e5f712a1f4deaf
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING