fpga: zynq-fpga: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230705094655.44753-8-frank.li@vivo.comSigned-off-by: Xu Yilun <yilun.xu@intel.com>

drivers/fpga/zynq-fpga.c

@@ -555,7 +555,6 @@ static int zynq_fpga_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct zynq_fpga_priv *priv;
 	struct fpga_manager *mgr;
-	struct resource *res;
 	int err;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -563,8 +562,7 @@ static int zynq_fpga_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	spin_lock_init(&priv->dma_lock);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->io_base = devm_ioremap_resource(dev, res);
+	priv->io_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->io_base))
 		return PTR_ERR(priv->io_base);