Merge "Validate or set the eth specifier on update Iface" am: 85694dc277 am: c9bb8aab8b am: 2ec893bbe7 am: 65cc096304 am: c6d043bbd4

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2128511

Change-Id: I50eef6b9cf5a4e2605fdddc63d56d79144ae1556
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>