dt-bindings: iio: addac: adi,ad74413r: improve example

Improve example by: dropping unrelated properties (status and cs-gpios)
and using generic node name.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221004115642.63749-2-krzysztof.kozlowski@linaro.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml

@@ -116,10 +116,7 @@ examples:
       #address-cells = <1>;
       #size-cells = <0>;
 
-      cs-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
-      status = "okay";
-
-      ad74413r@0 {
+      addac@0 {
         compatible = "adi,ad74413r";
         reg = <0>;
         spi-max-frequency = <1000000>;