leds: aw200xx: don't use return with gpiod_set_value() variants

While gpiod_set_value() currently returns void, it will soon be converted
to return an integer instead. Don't do `return gpiod_set...`.

Cc: Lee Jones <[e-mail]>
Cc: Pavel Machek <[e-mail]>
Cc: [e-mail]
Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Acked-by: Lee Jones <[e-mail]>
Acked-by: Uwe Kleine-König <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/leds/leds-aw200xx.c

···
 
 static void aw200xx_disable(const struct aw200xx *const chip)
 {
-	return gpiod_set_value_cansleep(chip->hwen, 0);
+	gpiod_set_value_cansleep(chip->hwen, 0);
 }
 
 static int aw200xx_probe_get_display_rows(struct device *dev,