project-lakitu: set permissions of /root dir to 750

BUG=b/198488267
TEST=presubmit and manual test
RELEASE_NOTE=None

Change-Id: I3a6cb155f49d368f4ed94d21458636cfad9d5d17
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/22110
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
1 file changed