ARM: dts: imx27-phytec-phycore-rdk: native-mode is part of display-timings

Move the native-mode property inside the display-timings node.

According to
Documentation/devicetree/bindings/display/panel/display-timing.txt.
native-mode is a property of the display-timings node.

If it's located outside of display-timings, the native-mode setting is
ignored and the first display timing is used (which is a problem only if
someone adds another display timing).
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts

@@ -14,11 +14,11 @@ chosen {
 
 	display0: LQ035Q7 {
 		model = "Sharp-LQ035Q7";
-		native-mode = <&timing0>;
 		bits-per-pixel = <16>;
 		fsl,pcr = <0xf00080c0>;
 
 		display-timings {
+			native-mode = <&timing0>;
 			timing0: 240x320 {
 				clock-frequency = <5500000>;
 				hactive = <240>;