Drop ARP packet in APF if the type is not ARP IPv4 am: a718d5733f am: 274f628c1f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/2840555

Change-Id: Iec54aa9ee47088e6a86a4733c48f7a079aaf42cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>