dt-bindings: input: touchscreen: exc3000: add EXC81W32

Add compatible for EXC81W32 touchscreen controllers.
They use the same protocol and have the same resolution as EXC80H84.

Signed-off-by: Philipp Zabel <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

Author: pH5

Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml

@@ -14,10 +14,14 @@ allOf:
 
 properties:
   compatible:
-    enum:
-      - eeti,exc3000
-      - eeti,exc80h60
-      - eeti,exc80h84
+    oneOf:
+      - const: eeti,exc3000
+      - const: eeti,exc80h60
+      - const: eeti,exc80h84
+      - items:
+          - enum:
+              - eeti,exc81w32
+          - const: eeti,exc80h84
   reg:
     const: 0x2a
   interrupts: