Drop ARP packet in APF if the type is not ARP IPv4 am: a718d5733f am: 338406d42c

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

Change-Id: I781873aade107a22e74bc264def3205a192d4885
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>