Merge "Verify the access to the mdnsd socket is blocked from Android U" am: a95962c170

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2443023

Change-Id: I54ea3977cbf7610a0e0cac4430ceef92a7e02093
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>