GitLab

Generates the token for CameraHalServer for it to be used for
RegisterServerWithToken.

Bug: b/170075468
Test: Build, deploy simplechrome, and verify the server token is
generated.

Change-Id: If3feaa7c06aa67bfbd478d4d0b5aedf22847ff0c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2534552
Commit-Queue: Jasmine Chen <lnishan@google.com>
Reviewed-by: Wei Lee <wtlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828211}