Board Specific vgahooks.c for vx800 Eaxmple Board

[bari]

This version of vgahooks.c was used for the vx800 example board. It 
makes some changes to int15 support.

-Bari

[Kevin O'Connor]

On Sat, Jul 18, 2009 at 11:26:50AM -0500, bari wrote:
> This version of vgahooks.c was used for the vx800 example board. It  
> makes some changes to int15 support.
>
> -Bari

The only thing that looked noteworthy was the vx855 memory size and
speed detection.  I've added that to the latest seabios git.  It would
help if someone can test it on a real board.

-Kevin