qa: pass kwargs to mount from remount

So we can pass mntargs.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit afcbfc0)

qa/tasks/cephfs/mount.py

@@ -588,7 +588,7 @@ def remount(self, **kwargs):
 
         self.update_attrs(**kwargs)
 
-        retval = self.mount(mntopts=mntopts, check_status=check_status)
+        retval = self.mount(mntopts=mntopts, check_status=check_status, **kwargs)
         # avoid this scenario (again): mount command might've failed and
         # check_status might have silenced the exception, yet we attempt to
         # wait which might lead to an error.