scsi_transport_sas: add 'scsi_target_id' sysfs attribute

There is no way to detect the scsi_target_id for any given SAS remote
port, so add a new sysfs attribute 'scsi_target_id'.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_sas_internal.h

@@ -4,7 +4,7 @@
 #define SAS_HOST_ATTRS		0
 #define SAS_PHY_ATTRS		17
 #define SAS_PORT_ATTRS		1
-#define SAS_RPORT_ATTRS		7
+#define SAS_RPORT_ATTRS		8
 #define SAS_END_DEV_ATTRS	5
 #define SAS_EXPANDER_ATTRS	7