ARM: configs: Everyone who had PANEL_SIMPLE now gets PANEL_EDP

In the patch ("drm/panel-simple-edp: Split eDP panels out of
panel-simple") we will split the PANEL_SIMPLE driver in two. By
default let's give everyone who had the old driver enabled the new
driver too. If folks want to opt-out of one or the other they always
can later.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210914132020.v5.5.I02250cd7d4799661b068bcc65849a456ed411734@changeid