[PATCH] doc: Add gpio status output fields description

[Simon Glass]

On Tue, 30 Aug 2022 at 08:56, Patrice Chotard
<patrice.chotard at foss.st.com> wrote:
>
> Add gpio status output fields description and one output example.
>
> Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
> ---
>
>  doc/usage/cmd/gpio.rst | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)

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