Changeset 230

Add AMD dbm690t mainboard to buildrom.
The dbm690t uses an embedded VBIOS which buildrom can attach to the ROM image.

(The previous commit missed all the added files, my bad - Jordan)

Signed-off-by: Marc Jones <marc.jones@…>
Signed-off-by: Jordan Crouse <jordan.crouse@…>
Acked-by: Ward Vandewege <ward@…>