Merge "[NETD-BPF#19] Mainline part of bpf code from netd" am: 523eaffcdf am: c272c3053b

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1849156

Change-Id: I0cb7e68c9b4de83b2e9c8e50e591de7aba44f976