LU-10435 tests: add version check to conf-sanity test 32e

LU-10435 tests: add version check to conf-sanity test 32e

This patch adds Lustre version check codes into conf-sanity
test 32e to make the test interoperate with servers that do
not support the DOM feature.

Test-Parameters: trivial envdefinitions=ONLY=32e \
mdsjob=lustre-b2_10 ossjob=lustre-b2_10 serverbuildno=52 \
testlist=conf-sanity

Change-Id: I6a561d2972dfc1071c0722af5cb265de0423626c
Signed-off-by: Jian Yu <jian.yu@intel.com>
Reviewed-on: https://review.whamcloud.com/30766
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>