LU-9826 tests: Do not run conf-sanity 32b with ZFS

LU-9826 tests: Do not run conf-sanity 32b with ZFS

With ZFS 0.7.0, conf-sanity test 32b consistently fails
in automated testing. Since the issue may be the VM test
environment, add conf-sanity test 32b to the
ALWAYS_EXCEPT list for ZFS testing.

Test-Parameters: trivial testlist=conf-sanity
Signed-off-by: James Nunez <james.a.nunez@intel.com>
Change-Id: Ib8582b85760057045bc7cce66d470e81e0e43dde
Reviewed-on: https://review.whamcloud.com/28408
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>