memory: da8xx-ddrctl: simplify platform_get_resource()

Use devm_platform_get_and_ioremap_resource() instead of
platform_get_resource() and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/memory/da8xx-ddrctl.c

···
 		return -EINVAL;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ddrctl = devm_ioremap_resource(dev, res);
+	ddrctl = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(ddrctl)) {
 		dev_err(dev, "unable to map memory controller registers\n");
 		return PTR_ERR(ddrctl);