Revert "start bpfloader asynchronously" am: 2a775a423a am: d230ef3812 am: af08072d80 am: c1e8235d07

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1347790

Change-Id: I80314257870150e4c7f8de4244855df13af29fb4
tree: 1e3d77ffb33703eb10b9a96a7cf13aa7b42752c5
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. PREUPLOAD.cfg