[automerger skipped] Fix EthernetTetheringTest failure if tethering is not supported am: 0275981699 am: 31e4bfe7b0 -s ours am: dd9a53fdf3 -s ours

am skip reason: Change-Id I2b9be6799c6edeefc8cd74897a8704dbe80dd061 with SHA-1 45fb1aae66 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12137906

Change-Id: I496218db0523df329096273cefde393b54e262ae
tree: a5a4bd3786be1dfa304374ce479c4fe951df2e12
  1. Tethering/