[U-Boot] [PATCH v4 16/16] dm: Move old driver model documentation into an 'old-docs' directory

[Marek Vasut]

Dear Simon Glass,

> This documentation is still useful but is not fully correct with the API
> changes since the original driver model implementation. So move it into
> a separate directory, and create a README to describe what is going on.
> 
> This documentation pertains to the planned implementation of driver model
> in U-Boot for each subsystem. It is probably better to have this
> documentation in the source code for each subsystem where possible, so
> that docbook will pick it up. Where this does not make sense, new
> documentation can be placed in some suitable file in doc/driver-model.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

I'd just remove the old documentation, it's useless and out-of-date now.

Best regards,
Marek Vasut