ARM: dts: bcm: HR2: add label to sp805 watchdog

This allows boards the option of adding properties or disabling the
watchdog entirely.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm-hr2.dtsi

@@ -268,7 +268,7 @@ i2c0: i2c@38000 {
 			clock-frequency = <100000>;
 		};
 
-		watchdog@39000 {
+		watchdog: watchdog@39000 {
 			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x39000 0x1000>;
 			interrupts = <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>;