Merge "ethernet: fix receiving NetworkOffer callbacks on stale object" am: b916ff898b am: a6bfcd90f9

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2150733

Change-Id: I0a8b333428f3523f84a362ba1755070482d46a73
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>