[automerger skipped] Add getInterfaceList API implementation in Ethernet service. am: 6e44855f90 am: 6c3b9485d9 am: 424c01d156 -s ours

am skip reason: Merged-In I8eeb2cd211c6a2ec6bc997c5e18995b585c6118a with SHA-1 9db074e070 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/2029725

Change-Id: Ia3b0e31bf2cc954ce92eea9c3ad5e02207c85984
tree: 89696db697da631c29156d283a45f57d2726b71c
  1. service-t/
  2. tests/