Merge changes from topic "vcn07"

* changes:
  Address comments on aosp/1550755
  [VCN07.1] Add test for bypassing VCN for non-internet request
tree: cd6fc11cb41e181970d68eab82806f5c5114270c
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING