dm: pci: Add a dm_ prefix to pci_get_bdf()

Most driver model PCI functions have a dm_ prefix. At some point, when the
old code is converted to driver model and the old functions are removed, we
will drop that prefix.

For consistency, we should use the dm_ prefix for all driver model
functions. Update pci_get_bdf() accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 5fe3072..f6ca58b 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -61,7 +61,7 @@
 	return dev;
 }
 
-pci_dev_t pci_get_bdf(struct udevice *dev)
+pci_dev_t dm_pci_get_bdf(struct udevice *dev)
 {
 	struct pci_child_platdata *pplat = dev_get_parent_platdata(dev);
 	struct udevice *bus = dev->parent;
@@ -225,7 +225,8 @@
 
 	for (bus = dev; device_is_on_pci_bus(bus);)
 		bus = bus->parent;
-	return pci_bus_write_config(bus, pci_get_bdf(dev), offset, value, size);
+	return pci_bus_write_config(bus, dm_pci_get_bdf(dev), offset, value,
+				    size);
 }
 
 
@@ -290,7 +291,7 @@
 
 	for (bus = dev; device_is_on_pci_bus(bus);)
 		bus = bus->parent;
-	return pci_bus_read_config(bus, pci_get_bdf(dev), offset, valuep,
+	return pci_bus_read_config(bus, dm_pci_get_bdf(dev), offset, valuep,
 				   size);
 }
 
@@ -403,7 +404,7 @@
 		int ret;
 
 		debug("%s: device %s\n", __func__, dev->name);
-		ret = pciauto_config_device(hose, pci_get_bdf(dev));
+		ret = pciauto_config_device(hose, dm_pci_get_bdf(dev));
 		if (ret < 0)
 			return ret;
 		max_bus = ret;