soc: imx: gpc: use devm_platform_ioremap_resource() to simplify code

Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/soc/imx/gpc.c

@@ -406,7 +406,6 @@ static int imx_gpc_probe(struct platform_device *pdev)
 	const struct imx_gpc_dt_data *of_id_data = of_id->data;
 	struct device_node *pgc_node;
 	struct regmap *regmap;
-	struct resource *res;
 	void __iomem *base;
 	int ret;
 
@@ -417,8 +416,7 @@ static int imx_gpc_probe(struct platform_device *pdev)
 	    !pgc_node)
 		return 0;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);