BpfClassic.h - more helpers am: 73df7414f1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2770598

Change-Id: Ie53acc11551c897466fa1637c982f2e5c0c2ac69
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>