ARM: dts: imx28: move lcdif control pins into board dts

The presence and muxing of lcdif control pins can vary much on different
boards.  Move them into imx28-evk.dts to make lcdif_24bit_pins_a only
about data pins, so that it can be reused by other boards.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-evk.dts

@@ -76,11 +76,25 @@ gpmi_pins_evk: gpmi-nand-evk@0 {
 					fsl,voltage = <1>;
 					fsl,pull-up = <0>;
 				};
+
+				lcdif_pins_evk: lcdif-evk@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
+						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
+						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
+						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
 			};
 
 			lcdif@80030000 {
 				pinctrl-names = "default";
-				pinctrl-0 = <&lcdif_24bit_pins_a>;
+				pinctrl-0 = <&lcdif_24bit_pins_a
+					     &lcdif_pins_evk>;
 				panel-enable-gpios = <&gpio3 30 0>;
 				status = "okay";
 			};

arch/arm/boot/dts/imx28.dtsi

@@ -400,10 +400,6 @@ lcdif_24bit_pins_a: lcdif-24bit@0 {
 						0x1150 /* MX28_PAD_LCD_D21__LCD_D21 */
 						0x1160 /* MX28_PAD_LCD_D22__LCD_D22 */
 						0x1170 /* MX28_PAD_LCD_D23__LCD_D23 */
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;