soc: bcm63xx-power: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <[e-mail]>
Signed-off-by: Florian Fainelli <[e-mail]>

drivers/soc/bcm/bcm63xx/bcm63xx-power.c

···
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
-	struct resource *res;
 	const struct bcm63xx_power_data *entry, *table;
 	struct bcm63xx_power *power;
 	unsigned int ndom;
···
 	if (!power)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	power->base = devm_ioremap_resource(&pdev->dev, res);
+	power->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(power->base))
 		return PTR_ERR(power->base);