[automerger skipped] Fix CtsTetheringTest on devices without permanent softAp interfaces. am: 3abe36567c am: ef7d1e44ca -s ours am: cd011d8048 -s ours

am skip reason: Change-Id I0ba6bc9dcbf7829dcad5561c707d5f5c5540f10b with SHA-1 24d8b8391e is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/11863001

Change-Id: I2afd39c9b7ff6e3d8343407448e5040fe60ac9b4
tree: 0c09f004794e802f12aefbb0fa536b089aa17286
  1. tests/