drm/panel: simple: Add "no-hpd" delay for Innolux TV123WAM

If the HPD signal isn't hooked up to this panel we need a 200 ms
delay.  In the datasheet this is shown as the maximum time that HPD
will take to be asserted after power is given to the panel.

Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181025222134.174583-3-dianders@chromium.org

drivers/gpu/drm/panel/panel-simple.c

@@ -1396,6 +1396,7 @@ static const struct panel_desc innolux_tv123wam = {
 		.height = 173,
 	},
 	.delay = {
+		.hpd_absent_delay = 200,
 		.unprepare = 500,
 	},
 };