firewire: consistent usage of node_id

Definitions as per IEEE 1212 and IEEE 1394:

     Node ID: Concatenation of bus ID and local ID. 16 bits long.
      Bus ID: Identifies a particular bus within a group of buses
              interconnected by bus bridges.
    Local ID: Identifies a particular node on a bus.
      PHY ID: Local ID of IEEE 1394 nodes. 6 bits long.

Never ever use a variable called node_id for anything else than a node ID.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

drivers/firewire/fw-topology.c

@@ -102,7 +102,7 @@ static struct fw_node *fw_node_create(u32 sid, int port_count, int color)
 		return NULL;
 
 	node->color = color;
-	node->node_id = self_id_phy_id(sid);
+	node->node_id = LOCAL_BUS | self_id_phy_id(sid);
 	node->link_on = self_id_link_on(sid);
 	node->phy_speed = self_id_phy_speed(sid);
 	node->port_count = port_count;