media: max9286: Fix enum_mbus_code

The max9286 driver supports multiple output formats but only a single
one is reported through the .enum_mbus_code operation.

Fix that.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20240617161135.130719-10-jacopo.mondi@ideasonboard.comSigned-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

drivers/media/i2c/max9286.c

@@ -914,10 +914,10 @@ static int max9286_enum_mbus_code(struct v4l2_subdev *sd,
 				  struct v4l2_subdev_state *sd_state,
 				  struct v4l2_subdev_mbus_code_enum *code)
 {
-	if (code->pad || code->index > 0)
+	if (code->pad || code->index >= ARRAY_SIZE(max9286_formats))
 		return -EINVAL;
 
-	code->code = MEDIA_BUS_FMT_UYVY8_1X16;
+	code->code = max9286_formats[code->index].code;
 
 	return 0;
 }