drm: panel: simple: Fix bpc for LG LB070WV8 panel

[ Upstream commit a6ae2fe5c9f9fd355a48fb7d21c863e5b20d6c9c ]

The LG LB070WV8 panel incorrectly reports a 16 bits per component value,
while the panel uses 8 bits per component. Fix it.

Fixes: dd0150026901 ("drm/panel: simple: Add support for LG LB070WV8 800x480 7" panel")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200711225317.28476-1-laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 68a2b25..57f32d1 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1041,7 +1041,7 @@ static const struct drm_display_mode lg_lb070wv8_mode = {
 static const struct panel_desc lg_lb070wv8 = {
 	.modes = &lg_lb070wv8_mode,
 	.num_modes = 1,
-	.bpc = 16,
+	.bpc = 8,
 	.size = {
 		.width = 151,
 		.height = 91,