[automerger skipped] Merge "DO NOT MERGE: Add stub class and filegroup for Ethernet service." into sc-mainline-prod am: 08ff0332f4 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/17197668

Change-Id: I07283ea9b298e179fab726c89b3179921621fbec