Fix owner/group of cmt preferences folder

During bootup the folder is created when the script is called as
a superuser.
This causes the preference files/folders to be created with root
as a user which cannot be altered by chronos.
This CL will chown the folder and files to chronos.

BUG=chromium:358312
TEST=Follow bug description

Change-Id: I1742a01701e0d457061d1b51749783732fc8cabf
Reviewed-on: https://chromium-review.googlesource.com/192422
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Commit-Queue: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
2 files changed