Merge "Make assertNetworkStatsEquals supports null iface name" into main am: cb11517757

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3214619

Change-Id: I16a5231f2356688b307314044ea87f62ecf29749
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>