dt-bindings: leds: Last color ID is now 14 (LED_COLOR_ID_LIME)

Increase the limit to match available values in dt-bindings/leds/common.h

Fixes: 472d7b9 ("dt-bindings: leds: Expand LED_COLOR_ID definitions")
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231008142103.1174028-1-megi@xff.cz
Signed-off-by: Lee Jones <lee@kernel.org>

Author: Ondrej Jirman

Documentation/devicetree/bindings/leds/common.yaml

@@ -43,7 +43,7 @@ properties:
       LED_COLOR_ID available, add a new one.
     $ref: /schemas/types.yaml#/definitions/uint32
     minimum: 0
-    maximum: 9
+    maximum: 14
 
   function-enumerator:
     description: