crypto: sunxi-ss - 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: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/sunxi-ss/sun4i-ss-core.c

@@ -225,7 +225,6 @@ static struct sun4i_ss_alg_template ss_algs[] = {
 
 static int sun4i_ss_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	u32 v;
 	int err, i;
 	unsigned long cr;
@@ -240,8 +239,7 @@ static int sun4i_ss_probe(struct platform_device *pdev)
 	if (!ss)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ss->base = devm_ioremap_resource(&pdev->dev, res);
+	ss->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(ss->base)) {
 		dev_err(&pdev->dev, "Cannot request MMIO\n");
 		return PTR_ERR(ss->base);