bpf offload - make sure bpf code can access packet headers am: 8e69ec111f am: 3129be7a3b

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1622559

Change-Id: Id2d51f17c4254f122445708fd8efc0cff7b53009
tree: 2d3d9027cf9f540dbb2d8427223369e4fa47fe49
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING