PM / Domains: Correct unit address in power-controller example

In example 2 of the generic PM domains DT bindings, the unit address of
the device node representing the child power controller doesn't match
its "reg" property. Correct it.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Documentation/devicetree/bindings/power/power_domain.txt

@@ -48,7 +48,7 @@ Example 2:
 		#power-domain-cells = <1>;
 	};
 
-	child: power-controller@12340000 {
+	child: power-controller@12341000 {
 		compatible = "foo,power-controller";
 		reg = <0x12341000 0x1000>;
 		power-domains = <&parent 0>;