ARM: dts: at91: sam9x75_curiosity: Remap key code for user button

The Key1 of Qtouch sensor is used as a back button in EGT demo application.
As sam9x75_curiosity doesn't have a QTouch sensor remap user button to
generate key code of 11(KEY_0).

Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>

Author: Dharma Balasubiramani

arch/arm/boot/dts/at91-sam9x75_curiosity.dts

@@ -30,7 +30,7 @@
 		button-user {
 			label = "USER";
 			gpios = <&pioC 9 GPIO_ACTIVE_LOW>;
-			linux,code = <KEY_PROG1>;
+			linux,code = <KEY_0>;
 			wakeup-source;
 		};
 	};