[PATCH v2 23/33] dtoc: Support processing the root node

[Simon Glass]

The device for the root node is normally bound by driver model on init.
With devices being instantiated at build time, we must handle the root
device also.

Add support for processing the root node, which may not have a compatible
string.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 tools/dtoc/dtb_platdata.py  | 10 ++++++++--
 tools/dtoc/src_scan.py      | 39 ++++++++++++++++++++++---------------
 tools/dtoc/test_dtoc.py     | 23 ++++++++++++++++++++--
 tools/dtoc/test_src_scan.py |  7 +++++++
 4 files changed, 59 insertions(+), 20 deletions(-)

Applied to u-boot-dm, thanks!