Add external/llvm-libc

Bug: 321313756
Test: repo sync -c --no-tags -q -j $(nproc) && ls external/llvm-libc
Change-Id: I4086832f647362ba832a97b58a50f0bad1ee9499
1 file changed
tree: 5dfd48df26a87872fa4185aad223e821f448b38e
  1. default.xml
  2. GLOBAL-PREUPLOAD.cfg
  3. OWNERS