Add external/libbpf

Bug: 203823368
Test: repo sync
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ic1000be2a96086e819347552c5d3018f53dbaa54
1 file changed
tree: 4c7b61dbdb7c710664113d7ffed22cc5c9633f34
  1. default.xml
  2. GLOBAL-PREUPLOAD.cfg