video: backlight: da9052: Constify platform_device_id

The platform_device_id is not modified by the driver and core uses it as
const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/video/backlight/da9052_bl.c

@@ -152,7 +152,7 @@ static int da9052_backlight_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct platform_device_id da9052_wled_ids[] = {
+static const struct platform_device_id da9052_wled_ids[] = {
 	{
 		.name		= "da9052-wled1",
 		.driver_data	= DA9052_TYPE_WLED1,