PCI: rockchip: Rename rockchip_cfg_atu() to rockchip_pcie_cfg_atu()

Rename rockchip_cfg_atu() to keep the name consistent with other functions
in pcie-rockchip.c.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/host/pcie-rockchip.c

@@ -1156,7 +1156,7 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip,
 	return 0;
 }
 
-static int rockchip_cfg_atu(struct rockchip_pcie *rockchip)
+static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
 {
 	struct device *dev = rockchip->dev;
 	int offset;
@@ -1279,7 +1279,7 @@ static int __maybe_unused rockchip_pcie_resume_noirq(struct device *dev)
 	if (err)
 		return err;
 
-	err = rockchip_cfg_atu(rockchip);
+	err = rockchip_pcie_cfg_atu(rockchip);
 	if (err)
 		return err;
 
@@ -1399,7 +1399,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
 		}
 	}
 
-	err = rockchip_cfg_atu(rockchip);
+	err = rockchip_pcie_cfg_atu(rockchip);
 	if (err)
 		goto err_free_res;