Merge "[NETD-BPF#19] Mainline part of bpf code from netd" am: 523eaffcdf am: cdbe931643

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

Change-Id: I6bf5c4fb52d362411a85b05411991940455a0282