LU-5423 tests: add version check to sanity-sec test 4

LU-5423 tests: add version check to sanity-sec test 4

This patch adds Lustre version check codes into sanity-sec
test 4 to make the test interoperate with servers that do not
have the following change:

Lustre-commit: 2bc5bcb7efa247fcd8cc65d013ffc9f6c33dd788
Lustre-change: http://review.whamcloud.com/12476

Signed-off-by: Jian Yu <jian.yu@intel.com>
Change-Id: Idbbf82fb4fb580b3a695b3512b54aae3602eca60
Reviewed-on: http://review.whamcloud.com/15153
Reviewed-by: Fan Yong <fan.yong@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>