scripts/vagrant: change owner also on ocssd_md file

For OCSSD disk case we create two files, but only one was later
chown-ed.

Signed-off-by: Pawel Piatek <pawelx.piatek@intel.com>
Change-Id: I411f0717f5416ba012e2e90582b60ec892d2744e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6170


Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Michal Berger <michalx.berger@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot