docs: dt: add an index.rst file for devicetree

There are some device tree documentation under
Documentation/devicetree. Add a top index file for it and
add the already-existing ReST file on it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-04-15 16:45:15 +02:00 • committed by Rob Herring
commit 4ef7f57ebe
2 changed files with 13 additions and 0 deletions