If the on-disk LFSCK trace file is corrupted, then LFSCK
may get failure when load it. Under such case, the LFSCK
should reset (recreate) the traces files by force.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Change-Id: I0237a88ff23cdec680303ac3976a53c1632598fe
Reviewed-on: https://review.whamcloud.com/27997


Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>