dt-bindings: gpio: gpio-vf610: Add parsing of hogs

Allow parsing GPIO controller children nodes with GPIO hogs.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: tq-steina

Documentation/devicetree/bindings/gpio/gpio-vf610.yaml

@@ -61,6 +61,13 @@ properties:
   gpio-ranges:
     maxItems: 1
 
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+
+    required:
+      - gpio-hog
+
 required:
   - compatible
   - reg