dt-bindings: input: melfas,mms114: add MMS252 compatible

Add a compatible for MMS252 touchscreen which appears to work fine with
the MMS114 driver.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Bryant Mairs <bryant@mai.rs>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20231105204759.37107-2-bryant@mai.rsSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/touchscreen/melfas,mms114.yaml

@@ -17,13 +17,17 @@ properties:
     pattern: "^touchscreen(@.*)?$"
 
   compatible:
-    items:
+    oneOf:
       - enum:
           - melfas,mms114
           - melfas,mms134s
           - melfas,mms136
           - melfas,mms152
           - melfas,mms345l
+      - items:
+          - enum:
+              - melfas,mms252
+          - const: melfas,mms114
 
   reg:
     description: I2C address