Merge "Allow using a log tag in TestableNetworkCallback" into main am: a1d8c55bbf

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3158220

Change-Id: I62acefd05756962d184ee6678719aea585f69d12
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>