ARM: at91/dt: sama5d4: fix the timer reg length

The second property of reg is the length, so correct it for timer.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/sama5d4.dtsi

@@ -1008,7 +1008,7 @@
 
 			pit: timer@fc068630 {
 				compatible = "atmel,at91sam9260-pit";
-				reg = <0xfc068630 0xf>;
+				reg = <0xfc068630 0x10>;
 				interrupts = <3 IRQ_TYPE_LEVEL_HIGH 5>;
 				clocks = <&h32ck>;
 			};