[PATCH] doc: spl: update reference to driver-model/README.txt

[Simon Glass]

On Mon, 2 Mar 2020 at 02:12, Patrick Delaunay <patrick.delaunay at st.com> wrote:
>
> Update the reference in doc/README.SPL to a no more existing file:
> "driver-model/README.txt", it is changed to "doc/driver-model/design.rst".
>
> Adding the directory path /doc/ allows to check this reference with
> 'make refcheckdocs'.
>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
> ---
>
>  doc/README.SPL | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

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