ARM: dts: at91: sama5d4: Add TCB2

The third TC block is missing from the dtsi. It has no output pins but can
still be used for timers as the IRQ is wired.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/arm/boot/dts/sama5d4.dtsi

@@ -1199,6 +1199,16 @@ tcb1: timer@fc020000 {
 				clock-names = "t0_clk", "slow_clk";
 			};
 
+			tcb2: timer@fc024000 {
+				compatible = "atmel,at91sam9x5-tcb", "simple-mfd", "syscon";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0xfc024000 0x100>;
+				interrupts = <42 IRQ_TYPE_LEVEL_HIGH 0>;
+				clocks = <&tcb2_clk>, <&clk32k>;
+				clock-names = "t0_clk", "slow_clk";
+			};
+
 			macb1: ethernet@fc028000 {
 				compatible = "atmel,sama5d4-gem";
 				reg = <0xfc028000 0x100>;