spi: meson-spicc: 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>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20190904135918.25352-16-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-meson-spicc.c

@@ -503,7 +503,6 @@ static int meson_spicc_probe(struct platform_device *pdev)
 {
 	struct spi_master *master;
 	struct meson_spicc_device *spicc;
-	struct resource *res;
 	int ret, irq, rate;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(*spicc));
@@ -517,8 +516,7 @@ static int meson_spicc_probe(struct platform_device *pdev)
 	spicc->pdev = pdev;
 	platform_set_drvdata(pdev, spicc);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	spicc->base = devm_ioremap_resource(&pdev->dev, res);
+	spicc->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(spicc->base)) {
 		dev_err(&pdev->dev, "io resource mapping failed\n");
 		ret = PTR_ERR(spicc->base);