mod_image_for_recovery.sh: Fix unencrypted directory ownership.

/stateful/unencrypted was being created with owner:group=1001:5000,
when it should have been 0:0 (root:root).

BUG=chromium:432774
TEST=Build a recovery image and verify that the unencrypted directory is
     owned by 0:0.

Change-Id: I766429f309d2de0c29aabf4552a812f93cc1e186
Reviewed-on: https://chromium-review.googlesource.com/231590
Tested-by: Ricky Liang <jcliang@chromium.org>
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Ricky Liang <jcliang@chromium.org>
1 file changed