LU-4365 quota: wait for global lock cancel

LU-4365 quota: wait for global lock cancel

In qsd_qtype_fini(), we'd wait for the global lock cancel done.

Test-Parameters: envdefinitions=SLOW=yes,ENABLE_QUOTA=yes  mdtfilesystemtype=zfs mdsfilesystemtype=zfs ostfilesystemtype=zfs  testlist=recovery-small
Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Change-Id: Ib51dba4e4e4b13693c49560162d53cb28937e253
Reviewed-on: http://review.whamcloud.com/8583
Tested-by: Jenkins
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>