Build ethernet service into service-connectivity-tiramisu-pre-jarjar. am: 29f7d6230c

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1956089

Change-Id: I8c4c76494b854b9656e55bbbd50753e984c35255
tree: 543e46a38c3367fd69566a280cd80ea4c8e08ed6
  1. service-t/
  2. tests/