BpfUtils.h - add back SKIP_IF_BPF_NOT_SUPPORTED macro am: 67fa2073ff am: 625c2c6bc6 am: c5468f82d4

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1631935

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0e6a740dcb11c9c8ea73ba9aa8646e473a5a3242
tree: 47885db646a17674f523f878538ea0d3a436e0d8
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. PREUPLOAD.cfg