Raven datasheet explains where firmware lives in system memory, so do
it there instead of in board code. Other boards using the same PCI
host will not have to copy the firmware loading code.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
[AF: Drop BIOS size workaround in favor of replacing our firmware blob]
Signed-off-by: Andreas Färber <andreas.faerber@web.de>