[SCSI] mpt2sas: Added raid transport support

Adding support for raid transport layer.  This will provide sysfs attributes
containing raid level, state, and resync rate.

MPT2SAS module will select RAID_ATTRS.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Reviewed-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
index 6b537f1..31e1ff6 100644
--- a/include/linux/raid_class.h
+++ b/include/linux/raid_class.h
@@ -32,6 +32,7 @@
 	RAID_LEVEL_0,
 	RAID_LEVEL_1,
 	RAID_LEVEL_10,
+	RAID_LEVEL_1E,
 	RAID_LEVEL_3,
 	RAID_LEVEL_4,
 	RAID_LEVEL_5,