dlm: fix swapped args sb_flags vs sb_status

The arguments got swapped by commit 986ae3c2 ("dlm: fix race between
final callback and remove") fixing this now.

Fixes: 986ae3c2 ("dlm: fix race between final callback and remove")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>