drm/bridge: lt9611: enable 4k support

Add 4k@60 in lt9611uxc timing configuration.

Change-Id: Id2ec45f85cc4094375c0342f86dc0dedf88d2f4b
Signed-off-by: GG Hou <renjhou@codeaurora.org>
diff --git a/drivers/gpu/drm/bridge/lt9611uxc.c b/drivers/gpu/drm/bridge/lt9611uxc.c
index e37e770..66803eb 100644
--- a/drivers/gpu/drm/bridge/lt9611uxc.c
+++ b/drivers/gpu/drm/bridge/lt9611uxc.c
@@ -139,6 +139,7 @@
 };
 
 static struct lt9611_timing_info lt9611_supp_timing_cfg[] = {
+	{3840, 2160, 24, 60, 4, 2}, /* 3840x2160 24bit 60Hz 4Lane 2ports */
 	{3840, 2160, 24, 30, 4, 2}, /* 3840x2160 24bit 30Hz 4Lane 2ports */
 	{1920, 1080, 24, 60, 4, 1}, /* 1080P 24bit 60Hz 4lane 1port */
 	{1920, 1080, 24, 30, 3, 1}, /* 1080P 24bit 30Hz 3lane 1port */