dt-bindings: input/touchscreen: imagis: Document ist3038

Imagis IST3038 is a variant of Imagis touchscreen IC. Document it in
imagis,ist3038c bindings.
Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240613025631.5425-3-raymondhackley@protonmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml

@@ -16,6 +16,7 @@ properties:
   compatible:
     enum:
       - imagis,ist3032c
+      - imagis,ist3038
       - imagis,ist3038b
       - imagis,ist3038c