[coreboot] K8 HT and dts fixups

[Myles Watson]

This is a small HT fixup until HT links get figured out better.

It removes processors from the list of devices on the domain's bus so
that pci_scan_bus won't disable them, then scans for them, then puts
them back.  There are lots of other ways to do this, but this one
seemed minimally invasive and ends up with a correct tree.

The dts fixups I should have put in with the other K8 patch for the
new resource allocator.  I went to the v2 Config.lb files and tried to
get them as complete as possible.

Signed-off-by: Myles Watson <mylesgw at gmail.com>

Thanks,
Myles