NetBpfLoad: combine into one file, part one

This eliminates loader.{h,cpp} which exist only for historical
reasons (this stuff used to be the libbpf_android library,
but the split between what was in and outside the lib never
really made all that much sense, and now it is not even a lib...).

Generated via:
  cd //packages/modules/Connectivity/netbpfload
  cat loader.h loader.cpp NetBpfLoad.cpp > z
  cat z > NetBpfLoad.cpp
  rm z loader.cpp loader.h
  git add NetBpfLoad.cpp
  git rm loader.cpp loader.h

Test: does not build, see follow up
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ie1a41a9ce935a7db6be5af810ce92a2d3e290264
3 files changed