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/tcx.c b/drivers/video/tcx.c
index ef7a7bd..cc039b3 100644
--- a/drivers/video/tcx.c
+++ b/drivers/video/tcx.c
@@ -365,7 +365,7 @@
 static int __devinit tcx_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 tcx_par *par;
 	int linebytes, i, err;