ASoC: uniphier: aio-dma: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190727150738.54764-23-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/uniphier/aio-dma.c

@@ -276,12 +276,10 @@ int uniphier_aiodma_soc_register_platform(struct platform_device *pdev)
 {
 	struct uniphier_aio_chip *chip = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	void __iomem *preg;
 	int irq, ret;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	preg = devm_ioremap_resource(dev, res);
+	preg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(preg))
 		return PTR_ERR(preg);