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: I1e269e775a06d62ab1e106ed8c39d98d01c74e39
tree: 97c3a30f7c9ba41d37ac2c10dfd456f8f0ef20c5
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING