Merge "Add tethering icmpv6 forwarding test" am: 86a800f911

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1817920

Change-Id: I1e50559c47fa1ed32207b72d0be9cad00887381e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>