drm/panel: simple: Add support for AUO G156XTN01.0 panel

Add timings for the AUO G156XTN01.0 panel.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415172725.84257-3-sebastian.reichel@collabora.com