[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/drivers/scsi/mpt2sas/Kconfig b/drivers/scsi/mpt2sas/Kconfig
index 70c4c24..ba8e128 100644
--- a/drivers/scsi/mpt2sas/Kconfig
+++ b/drivers/scsi/mpt2sas/Kconfig
@@ -44,6 +44,7 @@
 	tristate "LSI MPT Fusion SAS 2.0 Device Driver"
 	depends on PCI && SCSI
 	select SCSI_SAS_ATTRS
+	select RAID_ATTRS
 	---help---
 	This driver supports PCI-Express SAS 6Gb/s Host Adapters.