scsi: raid_class: Add 'JBOD' RAID level

Not a real RAID level, but some HBAs support JBOD in addition to the
'classical' RAID levels.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
index 31e1ff6..ec86555 100644
--- a/include/linux/raid_class.h
+++ b/include/linux/raid_class.h
@@ -38,6 +38,7 @@
 	RAID_LEVEL_5,
 	RAID_LEVEL_50,
 	RAID_LEVEL_6,
+	RAID_LEVEL_JBOD,
 };
 
 struct raid_data {