x86: Convert to use DM VESA video driver

At present only chromebook boards are converted to DM video. Other
x86 boards are still using the legacy cfb_console driver. This
switches to use DM version drivers.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/som-db5800-som-6867.h b/include/configs/som-db5800-som-6867.h
index a4b343e..a13be14 100644
--- a/include/configs/som-db5800-som-6867.h
+++ b/include/configs/som-db5800-som-6867.h
@@ -19,9 +19,9 @@
 #define CONFIG_ARCH_MISC_INIT
 
 #define CONFIG_PCI_PNP
-#define CONFIG_STD_DEVICES_SETTINGS     "stdin=serial,usbkbd,vga\0" \
-					"stdout=serial,vga\0" \
-					"stderr=serial,vga\0"
+#define CONFIG_STD_DEVICES_SETTINGS	"stdin=serial,usbkbd\0" \
+					"stdout=serial,vidconsole\0" \
+					"stderr=serial,vidconsole\0"
 
 #define CONFIG_SCSI_DEV_LIST		\
 	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA}, \