ASoC: tegra: 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/20190727150738.54764-3-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/tegra/tegra30_i2s.c

@@ -368,7 +368,6 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 	struct tegra30_i2s *i2s;
 	const struct of_device_id *match;
 	u32 cif_ids[2];
-	struct resource *mem;
 	void __iomem *regs;
 	int ret;
 
@@ -406,8 +405,7 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(&pdev->dev, mem);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs)) {
 		ret = PTR_ERR(regs);
 		goto err_clk_put;