ARM: dts: at91: sama5d2_ptc_ek: add PB_USER as wakeup source

Add the push button PB_USER as wakeup source

Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>

Author: ldesroches

arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts

@@ -385,6 +385,7 @@
 			label = "PB_USER";
 			gpios = <&pioA PIN_PA10 GPIO_ACTIVE_LOW>;
 			linux,code = <0x104>;
+			wakeup-source;
 		};
 	};