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: Ida313e50760cf4e079fe6b84df2ac2514780ddc8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>