scsi: qla2xxx: Use fabric name for Get Port Speed command

The Get Port Speed switch command needs the fabric port name of the
remote device.  Current code uses the registered WWPN.

Fixes: 726b8548 ("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_gs.c

@@ -3080,7 +3080,7 @@ int qla24xx_async_gpsc(scsi_qla_host_t *vha, fc_port_t *fcport)
 		GPSC_RSP_SIZE);
 
 	/* GPSC req */
-	memcpy(ct_req->req.gpsc.port_name, fcport->port_name,
+	memcpy(ct_req->req.gpsc.port_name, fcport->fabric_port_name,
 		WWN_SIZE);
 
 	sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;