tegra: video: Convert tegra20 LCD driver to driver model

Move this driver over to use driver model. This involves rearranging the
code somewhat. The effect is that everything is run from the probe() method.

Boards which use this are fixed up, but only seaboard is tested.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/board/compal/paz00/paz00.c b/board/compal/paz00/paz00.c
index cd99294..43931b0 100644
--- a/board/compal/paz00/paz00.c
+++ b/board/compal/paz00/paz00.c
@@ -41,7 +41,7 @@
 }
 #endif
 
-#ifdef CONFIG_LCD
+#ifdef CONFIG_DM_VIDEO
 /* this is a weak define that we are overriding */
 void pin_mux_display(void)
 {