leds: pm8058: Silence pointer to integer size warning

The pointer returned by of_device_get_match_data() doesn't have the same
size as u32 on 64-bit architectures, causing a compile warning when
compile-testing the driver on such platform.

Cast the return value of of_device_get_match_data() to unsigned long and
then to u32 to silence this warning.

Fixes: 7f866986e705 ("leds: add PM8058 LEDs driver")
Signed-off-by: Bjorn Andersson <[e-mail]>
Reviewed-by: Linus Walleij <[e-mail]>
Acked-by: Pavel Machek <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/leds/leds-pm8058.c

···
 	if (!led)
 		return -ENOMEM;
 
-	led->ledtype = (u32)of_device_get_match_data(&pdev->dev);
+	led->ledtype = (u32)(unsigned long)of_device_get_match_data(&pdev->dev);
 
 	map = dev_get_regmap(pdev->dev.parent, NULL);
 	if (!map) {