ARM: dts: cfa10036: Use pinctrl for power led

The leds-gpio driver recently got pinctrl support, so setup the power
led gpio muxing through pinctrl.

This avoids the warning:
leds-gpio leds.X: pins are not configured from the driver
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-cfa10036.dts

@@ -22,6 +22,18 @@ memory {
 
 	apb@80000000 {
 		apbh@80000000 {
+			pinctrl@80018000 {
+				led_pins_cfa10036: leds-10036@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x3043 /* MX28_PAD_AUART1_RX__GPIO_3_4 */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
+			};
+
 			ssp0: ssp@80010000 {
 				compatible = "fsl,imx28-mmc";
 				pinctrl-names = "default";
@@ -43,6 +55,8 @@ duart: serial@80074000 {
 
 	leds {
 		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins_cfa10036>;
 
 		power {
 			gpios = <&gpio3 4 1>;