ARM: dts: imx6sll-evk: correct lcd regulator GPIO pin

On i.MX6SLL EVK board, lcd regulator is controlled
by GPIO4 IO03 using MX6SLL_PAD_KEY_ROW5__GPIO4_IO03 pin,
NOT MX6SLL_PAD_ECSPI1_SCLK__GPIO4_IO08, correct it.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6sll-evk.dts

@@ -74,7 +74,7 @@
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_reg_lcd>;
 		regulator-name = "lcd-pwr";
-		gpio = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+		gpio = <&gpio4 3 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
 
@@ -289,7 +289,7 @@
 
 	pinctrl_reg_lcd: reglcdgrp {
 		fsl,pins = <
-			MX6SLL_PAD_ECSPI1_SCLK__GPIO4_IO08 0x17059
+			MX6SLL_PAD_KEY_ROW5__GPIO4_IO03 0x17059
 		>;
 	};