tegra: video: Move LCD driver to use the DM PWM driver

Use the driver-model PWM driver in preference to the old code.

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/arch/arm/dts/tegra20-paz00.dts b/arch/arm/dts/tegra20-paz00.dts
index f5edff1..5c7e805 100644
--- a/arch/arm/dts/tegra20-paz00.dts
+++ b/arch/arm/dts/tegra20-paz00.dts
@@ -65,6 +65,10 @@
 		};
 	};
 
+	pwm: pwm@7000a000 {
+		status = "okay";
+	};
+
 	lcd_panel: panel {
 		/* PAZ00 has 1024x600 */
 		clock = <54030000>;