ARM: dts: mxs: add pin config for LCD sync and clock pins

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28.dtsi

@@ -648,6 +648,19 @@
 					fsl,pull-up = <0>;
 				};
 
+				lcdif_sync_pins_a: lcdif-sync@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
+						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
+						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
+
 				can0_pins_a: can0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <