NetBpfLoad: combine into one file, part two am: 49140b98e1 am: 4ef761fc84

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3212378

Change-Id: Ic190e5a0119e66023c8f92748e4cd3439510e44e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>