expose readSectionUint() for testing am: c1f8ca3060

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/bpf/+/15212804

Change-Id: I8295ca337517fcf9b95b6f36f7d0da47dcfe765e
tree: b4608f90b54a697c11c980d1bc849e4e5e03e7f8
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. PREUPLOAD.cfg