[coreboot] YABEL and images in LAR files

[Myles Watson]

> here is the patch that should use the address that coreboot passes,
> unless that address is 0, then the ExpROM BAR address is used.
> 
> 
> Subject: [PATCH] use the rom_addr passed by coreboot, needed for ROM
> images from LAR
> 
> Signed-off-by: Pattrick Hueper <phueper at hueper.net>
Acked-by: Myles Watson <mylesgw at gmail.com>

Rev 1081.  I did some very minor cleanup of comments and white space.

Thanks,
Myles