PCI: imx6: Use devm_platform_get_and_ioremap_resource()

Convert calls to platform_get_resource() and devm_ioremap_resource()
into a single call to devm_platform_get_and_ioremap_resource(), to
simplify the code.

This new helper added in commit 890cc39 ("drivers: provide
devm_platform_get_and_ioremap_resource()") does what both of the
other separate functions do.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230323074553.90372-1-yang.lee@linux.alibaba.com
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>

Author: Yang Li

drivers/pci/controller/dwc/pci-imx6.c

@@ -1282,8 +1282,7 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 			return PTR_ERR(imx6_pcie->phy_base);
 	}
 
-	dbi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pci->dbi_base = devm_ioremap_resource(dev, dbi_base);
+	pci->dbi_base = devm_platform_get_and_ioremap_resource(pdev, 0, &dbi_base);
 	if (IS_ERR(pci->dbi_base))
 		return PTR_ERR(pci->dbi_base);