dt-bindings: gpio: gpio-vf610: Add imx93 compatible string

Add the compatible string for i.MX93
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

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

@@ -25,7 +25,9 @@ properties:
           - const: fsl,imx7ulp-gpio
           - const: fsl,vf610-gpio
       - items:
-          - const: fsl,imx8ulp-gpio
+          - enum:
+              - fsl,imx93-gpio
+              - fsl,imx8ulp-gpio
           - const: fsl,imx7ulp-gpio
 
   reg: