ARM: at91/dt: at91-sama5d3_xplained: add gpio-key pinctrl property

Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91-sama5d3_xplained.dts

@@ -188,6 +188,11 @@
 							<AT91_PIOA 19 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
 					};
 
+					pinctrl_key_gpio: key_gpio_0 {
+						atmel,pins =
+							<AT91_PIOE 29 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+
 					pinctrl_mmc0_cd: mmc0_cd {
 						atmel,pins =
 							<AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
@@ -276,6 +281,9 @@
 	gpio_keys {
 		compatible = "gpio-keys";
 
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_key_gpio>;
+
 		bp3 {
 			label = "PB_USER";
 			gpios = <&pioE 29 GPIO_ACTIVE_LOW>;