Drop ARP packet in APF if the type is not ARP IPv4 am: a718d5733f am: 08c5ff3a18

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

Change-Id: I35e3bde10dd48fd63594037186c88f4c16f45ec4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>