offload - begin ipv4 tethering implementation am: c2b0146045 am: 7c3ecd4aee

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1559293

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I801205435f7617cfe0d49d8c459a538650a5eff4
tree: 6d5fc0fdff5decf33080a01394a10f74fbb432a7
  1. framework/
  2. tests/
  3. Tethering/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING