rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/video/videomodes.c b/drivers/video/videomodes.c
index c81e5bc..d27ce1d 100644
--- a/drivers/video/videomodes.c
+++ b/drivers/video/videomodes.c
@@ -23,7 +23,7 @@
 
 /************************************************************************
   Get Parameters for the video mode:
-  The default video mode can be defined in CFG_DEFAULT_VIDEO_MODE.
+  The default video mode can be defined in CONFIG_SYS_DEFAULT_VIDEO_MODE.
   If undefined, default video mode is set to 0x301
   Parameters can be set via the variable "videomode" in the environment.
   2 diferent ways are possible: