Rename libbpf to libbpf_bcc am: 474eb0baa0 am: a8fd7326aa

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1906070

Change-Id: I63e02eceb6563a40c26a2b2fcd3ca8be9a29ed7a
tree: 3fc3325d6ef8c9301e7a6b90b49c3f4f0fb8ee0c
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. OWNERS_bpf
  8. PREUPLOAD.cfg