x86: Add a VESA video driver

Add a driver intended to cope with any VESA-compatible x86 graphics
adapter. It will not support ROMs which use OpenFirmware (Forth) since
there is no support for that in U-Boot. This means that MAC OS cards
will not work.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index ccbd7e2..697171e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1,3 +1,13 @@
+config VIDEO_VESA
+	bool "Enable VESA video driver support"
+	depends on X86
+	default n
+	help
+	  Turn on this option to enable a very simple driver which uses vesa
+	  to discover the video mode and then provides a frame buffer for use
+	  by U-Boot. This can in principle be used with any platform that
+	  supports PCI and video cards that support VESA BIOS Extension (VBE).
+
 config VIDEO_X86
 	bool "Enable x86 video driver support"
 	depends on X86