tree 5507279e1ec6e20915784a6f7eb26d58bd5b7918
parent bf33e74ee113811b64735c0423cb69e469266c4f
author chen xu <fionaxu@google.com> 1552278451 -0700
committer chen xu <fionaxu@google.com> 1552278451 -0700

improve carrier id documentation

Bug: 126440877
Test: Build
Change-Id: Icc91f145f0c804595ea4e35ade2a1ab6d99fcb1f