[automerger skipped] Don't run EthernetTetheringTest if Ethernet is not supported am: 4d5e98e41c -s ours

am skip reason: Merged-In Ie918a0657ab17900437918f7ae99f7aa2539052c with SHA-1 dc581e6c8f is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/24293505

Change-Id: I11cceac9c21a24276ee8110153c2f74a509576c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>