ARM: at91/dt: at91sam9m10g45ek add rtc node

Add rtc node to both the at91sam9g45 SoC family and the at91sam9m10g45ek board.

Signed-off-by: Erik van Luijk <evanluijk@interact.nl>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91sam9m10g45ek.dts

@@ -160,6 +160,10 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_pwm_leds>;
 			};
+
+			rtc@fffffdb0 {
+				status = "okay";
+			};
 		};
 
 		fb0: fb@0x00500000 {