LU-9187 lfsck: handle parameters properly

LU-9187 lfsck: handle parameters properly

Currently, because of improper handling the parameters as to
related parameters (such as "failout", "dryrun") only work for
OI scrub, but do not work for namespace LFSCK and layout LFSCK.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Change-Id: Ib38f7480758a59ba6a042948a8b49c36b401f100
Reviewed-on: https://review.whamcloud.com/25849
Tested-by: Jenkins
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>