of/video: fix build breakage in FB drivers

Fixes build errors in a number of framebuffer drivers caused
by the OF device_node pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index 2c371c0..09f1b9b 100644
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -275,7 +275,7 @@
 
 static int __devinit bw2_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 bw2_par *par;
 	int linebytes, err;