LU-11508 mdt: reject DoM file migration

LU-11508 mdt: reject DoM file migration

Now that DoM file migration between MDTs is not suppoted, reject
it to avoid data loss.

Add sanity.sh 230j.

Signed-off-by: Lai Siyao <lai.siyao@whamcloud.com>
Signed-off-by: Peter Jones <pjones@whamcloud.com>
Change-Id: I029446918692f911c29d2409e1398e1b147737c3
Reviewed-on: https://review.whamcloud.com/33394
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Mike Pershin <mpershin@whamcloud.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>