drm/panel: simple: Fix bus_format for the Olimex LCD-OLinuXino-4.3TS

The format is RGB888 not RGB666.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 11e36d9..113db3c 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1214,7 +1214,7 @@
 		.width = 105,
 		.height = 67,
 	},
-	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
 };
 
 /*