ARM: dts: at91: sama5d3xek: use TCB0 as timers

Use tcb0 for timers as selected in sama5_defconfig.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/arm/boot/dts/sama5d3xcm.dtsi

@@ -34,6 +34,18 @@ apb {
 			spi0: spi@f0004000 {
 				cs-gpios = <&pioD 13 0>, <0>, <0>, <0>;
 			};
+
+			tcb0: timer@f0010000 {
+				timer@0 {
+					compatible = "atmel,tcb-timer";
+					reg = <0>;
+				};
+
+				timer@1 {
+					compatible = "atmel,tcb-timer";
+					reg = <1>;
+				};
+			};
 		};
 
 		ebi@10000000 {