crypto: stm32 - 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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/stm32/stm32-crc32.c

@@ -255,7 +255,6 @@ static int stm32_crc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct stm32_crc *crc;
-	struct resource *res;
 	int ret;
 
 	crc = devm_kzalloc(dev, sizeof(*crc), GFP_KERNEL);
@@ -264,8 +263,7 @@ static int stm32_crc_probe(struct platform_device *pdev)
 
 	crc->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	crc->regs = devm_ioremap_resource(dev, res);
+	crc->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(crc->regs)) {
 		dev_err(dev, "Cannot map CRC IO\n");
 		return PTR_ERR(crc->regs);

drivers/crypto/stm32/stm32-cryp.c

@@ -1955,7 +1955,6 @@ static int stm32_cryp_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct stm32_cryp *cryp;
-	struct resource *res;
 	struct reset_control *rst;
 	int irq, ret;
 
@@ -1969,8 +1968,7 @@ static int stm32_cryp_probe(struct platform_device *pdev)
 
 	cryp->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	cryp->regs = devm_ioremap_resource(dev, res);
+	cryp->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(cryp->regs))
 		return PTR_ERR(cryp->regs);