Merge "NetworkProvider: Do not propagate callbacks for unregistered offers" am: 1c37d3e7b0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2148674

Change-Id: I3b8bec237cfa95d5267d71236d988620b299ae60
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>