[syslinux] Fixing the localboot 0x80 feature

[Erwan Velu]

Hi,

As reported by some mageia users, the localboot 0x80 was broken since we
went on 6.02 release.

I've been lookng at this bug and it sounds like the localboot code didn't
initialized edx properly. Since this patch, I'm able to make a localboot
0x80 properly.

Please find my patch of my tree (up to date regarding master)

http://git.zytor.com/?
p=users/erwan/hdt.git;a=commit;h=de2e72d82999f176dda42aedb6983f85699481a7

Cheers,
Erwan