[coreboot] SeaBIOS + SATA

[Kevin O'Connor]

FYI,

The latest SeaBIOS git has a reworked ATA reset.  My epia-cn is now
detecting SATA drives.

-Kevin

init hard drives
ATA controller 0 at 000024a0/000024c0 (dev 00000078 prog_if 0000008f)
ATA controller 1 at 000024b0/000024d0 (dev 00000078 prog_if 0000008f)
ATA controller 2 at 000001f0/000003f0 (dev 00000079 prog_if 0000008a)
ATA controller 3 at 00000170/00000370 (dev 00000079 prog_if 0000008a)

ata0-0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
ata0 master: Maxtor 6B200M0 ATA-7 Hard-Disk (189 GiBytes)

ata2-1: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
ata2  slave: Maxtor 6Y250P0 ATA-7 Hard-Disk (233 GiBytes)