dm: Use dm_scan_fdt_dev() directly where possible

Quite a few places have a bind() method which just calls dm_scan_fdt_dev().
We may as well call dm_scan_fdt_dev() directly. Update the code to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 230d181..342b78c 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -752,19 +752,6 @@
 	return ret;
 }
 
-static int pci_uclass_post_bind(struct udevice *bus)
-{
-	/*
-	 * Scan the device tree for devices. This does not probe the PCI bus,
-	 * as this is not permitted while binding. It just finds devices
-	 * mentioned in the device tree.
-	 *
-	 * Before relocation, only bind devices marked for pre-relocation
-	 * use.
-	 */
-	return dm_scan_fdt_dev(bus);
-}
-
 static int decode_regions(struct pci_controller *hose, const void *blob,
 			  int parent_node, int node)
 {
@@ -1245,7 +1232,7 @@
 	.id		= UCLASS_PCI,
 	.name		= "pci",
 	.flags		= DM_UC_FLAG_SEQ_ALIAS,
-	.post_bind	= pci_uclass_post_bind,
+	.post_bind	= dm_scan_fdt_dev,
 	.pre_probe	= pci_uclass_pre_probe,
 	.post_probe	= pci_uclass_post_probe,
 	.child_post_bind = pci_uclass_child_post_bind,
diff --git a/drivers/pci/pci_sandbox.c b/drivers/pci/pci_sandbox.c
index b562813..6a84ee3 100644
--- a/drivers/pci/pci_sandbox.c
+++ b/drivers/pci/pci_sandbox.c
@@ -51,12 +51,6 @@
 	return ops->read_config(emul, offset, valuep, size);
 }
 
-static int sandbox_pci_child_post_bind(struct udevice *dev)
-{
-	/* Attach an emulator if we can */
-	return dm_scan_fdt_dev(dev);
-}
-
 static const struct dm_pci_ops sandbox_pci_ops = {
 	.read_config = sandbox_pci_read_config,
 	.write_config = sandbox_pci_write_config,
@@ -72,7 +66,9 @@
 	.id	= UCLASS_PCI,
 	.of_match = sandbox_pci_ids,
 	.ops	= &sandbox_pci_ops,
-	.child_post_bind = sandbox_pci_child_post_bind,
+
+	/* Attach an emulator if we can */
+	.child_post_bind = dm_scan_fdt_dev,
 	.per_child_platdata_auto_alloc_size =
 			sizeof(struct pci_child_platdata),
 };