Add kill switch flag for ARP offload in APF am: 751bf1bcaf am: 553e317576

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/3130993

Change-Id: Ib62492f8ffaaeef39ad3d36a1da3e8ea426395dd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>