[DLM] Update Kconfig in the light of comments on lkml

We now depend on user selectable options rather than
select them. There is no dependancy on SYSFS since this
selection is independant of the DLM (even though it wouldn't
be sensible to build the DLM without it)
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/dlm/Kconfig

@@ -3,9 +3,8 @@ menu "Distributed Lock Manager"
 
 config DLM
 	tristate "Distributed Lock Manager (DLM)"
-	depends on SYSFS
 	depends on IPV6 || IPV6=n
-	select IP_SCTP
+	depends on IP_SCTP
 	select CONFIGFS_FS
 	help
 	A general purpose distributed lock manager for kernel or userspace