[SPARC] sbus: Make sure sbus nodes are named uniquely.

Just name them "sbus%d" otherwise on sun4d we try to register
multiple entries named "sbi@0,0" which does not work.

Based upon a report from Raymond Burns.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
index 16b5977..935952e 100644
--- a/drivers/sbus/sbus.c
+++ b/drivers/sbus/sbus.c
@@ -233,7 +233,7 @@
 	sbus->ofdev.node = dp;
 	sbus->ofdev.dev.parent = NULL;
 	sbus->ofdev.dev.bus = &sbus_bus_type;
-	strcpy(sbus->ofdev.dev.bus_id, dp->path_component_name);
+	sprintf(sbus->ofdev.dev.bus_id, "sbus%d", num_sbus);
 
 	if (of_device_register(&sbus->ofdev) != 0)
 		printk(KERN_DEBUG "sbus: device registration error for %s!\n",