Only use source addresses in handlePacket am: 7078ac59b9

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2908143

Change-Id: I451c0348daca49612c7f6c3d1d5b5bb1930ca502
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>