Merge "Ignore keepalive tests before S and without Tethering module" into udc-dev am: 23c86e6873 am: 8687ca2122

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/23126649

Change-Id: If7e2972f84df76faf5d19d21d6b89e6a2528cef3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>