Merge "ethernet: fix receiving NetworkOffer callbacks on stale object" am: b916ff898b am: 9baf09483f

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

Change-Id: I772aadf511b0b7691d112955b130e6a4ba20c04c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>