power: supply: gpio-charger: Fix wakeup source leaks on device unbind

Device can be unbound, so driver must also release memory for the wakeup
source.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250406202730.55096-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Author: krzk

drivers/power/supply/gpio-charger.c

@@ -366,7 +366,9 @@ static int gpio_charger_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, gpio_charger);
 
-	device_init_wakeup(dev, 1);
+	ret = devm_device_init_wakeup(dev);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to init wakeup\n");
 
 	return 0;
 }