bpfloader: also load from /vendor/etc/bpf/ am: 0f10f3fd9f

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1188704

Change-Id: I5e99df4cdc54e29ec5c396319132d809819e3a86
tree: bbe47c668eaa33b1dd8841bdc961c75791d25a84
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. OWNERS_bpf
  8. PREUPLOAD.cfg