Add util to check if permission has system signature

Bug: 294777050
Test: m
Change-Id: I66e94595ce5f4ab3b4f372e4e5e6cb06dc686c21
2 files changed
tree: a96fe3b61bb89149225505486168c58ae40acde2
  1. client-libs/
  2. common/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING