Only use source addresses in handlePacket am: 7078ac59b9

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

Change-Id: I4800d936e940adbc7b9bda2d97af4bd1ae3f91ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>