[syslinux] ethersel.c32 issues

[H. Peter Anvin]

Jesse Sipprell wrote:
> My apologies if this is no longer an issue or has been resolved in some other
> manner.  It was quicker for me to simply do some quick hacking than to
> research more fully.

This is great; however, I suspect the following:

- We should default to the current code if the PCI BIOS isn't detected;
- We should probably also support PCI BIOS table access.

	-hpa