Merge "Move ArpPacket.java to frameworks/libs/net" into main am: 136bf7c8e3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2722794

Change-Id: I958610ec756a68e553e85d038670b39a72fb55a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>