dt-bindings: pinctrl: cypress,cy8c95x0: Add reset pin

This patch adds support for an optional reset pin.

The reset pin is used to bring the chip into a known state and has an
internal pull-down, allowing it to be left floating if not needed.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230714081902.2621771-1-Naresh.Solanki@9elements.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/cypress,cy8c95x0.yaml

@@ -51,6 +51,10 @@ properties:
     description:
       Optional power supply.
 
+  reset-gpios:
+    description: GPIO connected to the XRES pin
+    maxItems: 1
+
 patternProperties:
   '-pins$':
     type: object