[L] Change in coreboot[main]: Documentation/internals: Add devicetree documentation

[Martin L Roth (Code Review)]

Attention is currently required from: Martin L Roth, Nicholas Chin.

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/84709?usp=email

to look at the new patch set (#3).

The following approvals got outdated and were removed:
Verified-1 by build bot (Jenkins)

Change subject: Documentation/internals: Add devicetree documentation
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Documentation/internals: Add devicetree documentation

Signed-off-by: Martin Roth 
Change-Id: I2a43a96911844bd2b682004d5423126ad00a4bf3
---
M Documentation/index.md
A Documentation/internals/devicetree.md
A Documentation/internals/index.md
3 files changed, 698 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/84709/3