bpf_progs: just use bpf_net_helpers.h for common includes am: 22a5f91a33 am: 52085bad66

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3226108

Change-Id: If1a30fafc79cd4540805383d21d9d59002c3fcb3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>