LU-8810 tests: skip non-crucial LFSCK intermediateness check

LU-8810 tests: skip non-crucial LFSCK intermediateness check

Sometimes, because of system schedule issue, the test scripts
may miss to check some LFSCK intermediate status, but it will
not affect the LFSCK to detect and repair the inconsistency.
We can skip some non-crucial status check, but check the LFSCK
repaired things directly.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Change-Id: Ie356fa194b9ea7b9194b9fa9f8cf44a69d4c20db
Reviewed-on: https://review.whamcloud.com/23650
Tested-by: Jenkins
Reviewed-by: Jian Yu <jian.yu@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>