dev: gcdb: fix lk display bottom shift issue for ssd2080m.

Change "vertical back porch"/"vertical front porch" and
"vertical pulse width" to adjust ssd2080m requirement,
or the screen will shift to bottom a bit.

Change-Id: I31d2acb87b3fae4b43056b6a3c107d83feb22f68
diff --git a/dev/gcdb/display/include/panel_ssd2080m_720p_video.h b/dev/gcdb/display/include/panel_ssd2080m_720p_video.h
index 66c2b5a..018afc3 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, 24, 14, 0, 12, 16, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0
+  720, 1280, 80, 24, 14, 0, 11, 14, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0
 };
 
 /*---------------------------------------------------------------------------*/