dtoc: Assign a sequence number to each node

Now that we have the alias information we can assign a sequence number
to each device in the uclass. Store this in the node associated with each
device.

This requires renaming the sandbox test drivers to have the right name.
Note that test coverage is broken with this patch, but fixed in the next
one.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/misc/test_drv.c b/drivers/misc/test_drv.c
index 827a50e..a2a77d3 100644
--- a/drivers/misc/test_drv.c
+++ b/drivers/misc/test_drv.c
@@ -86,7 +86,7 @@
 	{ }
 };
 
-U_BOOT_DRIVER(testbus_drv) = {
+U_BOOT_DRIVER(denx_u_boot_test_bus) = {
 	.name	= "testbus_drv",
 	.of_match	= testbus_ids,
 	.id	= UCLASS_TEST_BUS,
@@ -160,7 +160,9 @@
 	{ }
 };
 
-U_BOOT_DRIVER(testfdt_drv) = {
+DM_DRIVER_ALIAS(denx_u_boot_fdt_test, google_another_fdt_test)
+
+U_BOOT_DRIVER(denx_u_boot_fdt_test) = {
 	.name	= "testfdt_drv",
 	.of_match	= testfdt_ids,
 	.id	= UCLASS_TEST_FDT,