LU-4444 test: Re-enable conf-sanity/69 for ZFS

LU-4444 test: Re-enable conf-sanity/69 for ZFS

Enable conf-sanity/69 for ZFS now that ZFS is faster.
Fix zpool import for conf-sanity/50i, should be mds2 not ost1.

Test-Parameters: trivial testlist=conf-sanity mdsfilesystemtype=zfs mdtfilesystemtype=zfs ostfilesystemtype=zfs envdefinitions=SLOW=yes
Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: I4a367e217ec05ab4f678f58f0ffae95d84e33cc6
Reviewed-on: http://review.whamcloud.com/21543
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Reviewed-by: Saurabh Tandan <saurabh.tandan@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>