staging:lustre: call libcfs_ioctl directly

staging:lustre: call libcfs_ioctl directly

No reason to go through the cfs_psdev_ops abstract
to call libcfs_ioctl. Just call libcfs_ioctl directly.

Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>