add placeholder ebpf programs for XDP tethering am: b199742d73 am: ffc65b4880

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1553913

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8fcb0bd8e0765686e582e5f70864163343dbfe47
tree: f1499b85342c50ee3237f548b9e4d4d48447e01e
  1. framework/
  2. tests/
  3. Tethering/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING