PCI: xilinx-nwl: Update PCI config space remap function

PCI configuration space should be mapped with a memory region type that
generates on the CPU host bus non-posted write transations. Update the
driver to use the devm_pci_remap_cfg* interface to make sure the correct
memory mappings for PCI configuration space are used.
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>

drivers/pci/host/pcie-xilinx-nwl.c

@@ -761,7 +761,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
 	pcie->phys_pcie_reg_base = res->start;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
-	pcie->ecam_base = devm_ioremap_resource(dev, res);
+	pcie->ecam_base = devm_pci_remap_cfg_resource(dev, res);
 	if (IS_ERR(pcie->ecam_base))
 		return PTR_ERR(pcie->ecam_base);
 	pcie->phys_ecam_base = res->start;