LU-826 mdd: Fix for mdd_lov_create_finish memory free

LU-826 mdd: Fix for mdd_lov_create_finish memory free

At lov/lov_pack.c lov_packmd() use OBD_ALLOC_LARGE for memory
allocation for lov_mds_md object(lmpp), but mdd_lov_create_finish
use OBD_FREE to free memory. This bug doesn`t affect to current
version, but may be relevant in future.

Signed-off-by: Alexander Boyko <alexander_boyko@xyratex.com>
Change-Id: Ic37cb72022b9aac02368b11f370cbaad0c730e7c
Reviewed-on: http://review.whamcloud.com/1659
Tested-by: Hudson
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>