dt-bindings: w1-gpio: Remove unneeded unit address

Remove unneeded unit address from onewire node, so that dtc does not
complain that unit address is present without a corresponding reg entry,
when such use is made on a real dts file.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/w1/w1-gpio.txt b/Documentation/devicetree/bindings/w1/w1-gpio.txt
index 6e09c35..3709190 100644
--- a/Documentation/devicetree/bindings/w1/w1-gpio.txt
+++ b/Documentation/devicetree/bindings/w1/w1-gpio.txt
@@ -15,7 +15,7 @@
 
 Examples:
 
-	onewire@0 {
+	onewire {
 		compatible = "w1-gpio";
 		gpios = <&gpio 126 0>, <&gpio 105 0>;
 	};