drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock

This panel has been implemented in commit eae7488 ("drm/panel-simple:
Add Innolux G156HCE-L01 panel entry") with a higher clock than the typical
one mentioned on the documentation to avoid flickering on the unit
tested. Testing on a different unit shows that the panel actually works
with the intended 70.93 MHz clock and even lower frequencies so the
flickering is likely caused either by a defective unit or by other
different components such as the bridge.

Fixes: eae7488 ("drm/panel-simple: Add Innolux G156HCE-L01 panel entry")
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Marek Vasut <marex@denx.de> # MX8MM with LT9211
Reviewed-by: Marek Vasut <marex@denx.de>
[narmstrong: fixed commit id in commit msg]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814134024.397739-1-luca.ceresoli@bootlin.com

Author: lucaceresoli

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

@@ -2377,7 +2377,7 @@ static const struct panel_desc innolux_g121x1_l03 = {
 };
 
 static const struct display_timing innolux_g156hce_l01_timings = {
-	.pixelclock = { 120000000, 144000000, 150000000 },
+	.pixelclock = { 120000000, 141860000, 150000000 },
 	.hactive = { 1920, 1920, 1920 },
 	.hfront_porch = { 80, 90, 100 },
 	.hback_porch = { 80, 90, 100 },