dev: gcdb: fix lk display blinking issue for ssd2080m.

Change horizontal back porch and power mode of
"Blanking or Low Power Interval" setting according to ssd2080m spec.

Change-Id: Icd5814bde41f1beba4f2ea59224f44c96911c62e
diff --git a/dev/gcdb/display/include/panel_ssd2080m_720p_video.h b/dev/gcdb/display/include/panel_ssd2080m_720p_video.h
index f8fc707..66c2b5a 100755
--- a/dev/gcdb/display/include/panel_ssd2080m_720p_video.h
+++ b/dev/gcdb/display/include/panel_ssd2080m_720p_video.h
@@ -54,7 +54,7 @@
 /* Panel resolution                                                          */
 /*---------------------------------------------------------------------------*/
 static struct panel_resolution ssd2080m_720p_video_panel_res = {
-  720, 1280, 80, 30, 14, 0, 12, 16, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0
+  720, 1280, 80, 24, 14, 0, 12, 16, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0
 };
 
 /*---------------------------------------------------------------------------*/
@@ -453,7 +453,7 @@
 /*---------------------------------------------------------------------------*/
 
 static struct videopanel_info ssd2080m_720p_video_video_panel = {
-  1, 0, 0, 0, 1, 0, 2, 0, 0x9
+  1, 0, 0, 0, 1, 0, 2, 0, 0x8
 };
 
 /*---------------------------------------------------------------------------*/