MIPS: dts: bcm63268: Add missing properties to the TWD node

We currently have a DTC warning with the current DTS due to the lack of
a suitable #address-cells and #size-cells property:

  DTC     arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dtb
arch/mips/boot/dts/brcm/bcm63268.dtsi:115.5-22: Warning (reg_format): /ubus/timer-mfd@10000080/timer@0:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)
arch/mips/boot/dts/brcm/bcm63268.dtsi:120.5-22: Warning (reg_format): /ubus/timer-mfd@10000080/watchdog@1c:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)
arch/mips/boot/dts/brcm/bcm63268.dtsi:111.4-35: Warning (ranges_format): /ubus/timer-mfd@10000080:ranges: "ranges" property has invalid length (12 bytes) (parent #address-cells == 1, child #address-cells == 2, #size-cells == 1)

Fixes: d3db4b96 ("mips: dts: bcm63268: add TWD block timer")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/brcm/bcm63268.dtsi

@@ -109,6 +109,8 @@ timer-mfd@10000080 {
 			compatible = "brcm,bcm7038-twd", "simple-mfd", "syscon";
 			reg = <0x10000080 0x30>;
 			ranges = <0x0 0x10000080 0x30>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 
 			timer@0 {
 				compatible = "brcm,bcm6345-timer";