LU-3754 mdt: Enable data_version control

LU-3754 mdt: Enable data_version control

When LU-1333 was landed, all HSM infrastructure was not yet landed and
it was not possible to archived a file. As a consequence, the original
patch did not compare on-disk archived data version and current file
data version.
Now, everything required is there and we should enable this
verification.

Signed-off-by: Aurelien Degremont <aurelien.degremont@cea.fr>
Change-Id: I9db86797b234d0f54c4c87bb84290b788f2d05bb
Reviewed-on: http://review.whamcloud.com/7329
Tested-by: Hudson
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>