of: Always use 'struct device.of_node' to get device node pointer.

The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated.  This patch
makes all readers of these elements use device.of_node instead.

(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/video/sunxvr1000.c b/drivers/video/sunxvr1000.c
index 23e69e8..ad92a20 100644
--- a/drivers/video/sunxvr1000.c
+++ b/drivers/video/sunxvr1000.c
@@ -114,7 +114,7 @@
 static int __devinit gfb_probe(struct of_device *op,
 			       const struct of_device_id *match)
 {
-	struct device_node *dp = op->node;
+	struct device_node *dp = op->dev.of_node;
 	struct fb_info *info;
 	struct gfb_info *gp;
 	int err;