Three cleanup / fixes for CPU GDT alignment. First comes from Andrew Morton, PnP BIOS driver was broken during build. I tested and fixed the PnP BIOS code for SMP kernels, and third comes a fix for hotplug. I included Andrew's initial fix for the benefit of those who didn't get it. Testing: 4-way SMP boot/halt loops with APM and PnP compatible BIOS against 2.6.14-rc2. Zachary Amsden <zach@xxxxxxxxxx>
