tegra: nyan-big: Move the LCD driver to driver model

Adjust the driver to use driver model. The SOR becomes a bridge device. We
use the normal simple_panel driver to handle the display itself. We also
need to enable some options such as regulators, PWMs and DM_VIDEO itself.

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/drivers/video/Kconfig b/drivers/video/Kconfig
index 19f9429..72afae0 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -383,6 +383,7 @@
 
 config VIDEO_TEGRA124
 	bool "Enable video support on Tegra124"
+	depends on DM_VIDEO
 	help
 	   Tegra124 supports many video output options including eDP and
 	   HDMI. At present only eDP is supported by U-Boot. This option