Merge "import copy of bpf_net_helpers.h from system/netd/bpf_progs" am: 28c51a157c am: b6c38f987f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1733033

Change-Id: I1e8f24c3253f7d1369c8180e6b97edbf898b4224