- Correct timer and interrupt controller mappings
- Add ESP clock frequency to avoid division by zero
- CS4231 exists only in SS5
- Disable BPP for now, it's not emulated by Qemu anyway
With these fixes, one NetBSD kernel even got to root device prompt on SS5.
git-svn-id: svn://coreboot.org/openbios/openbios-devel@147 f158a5a8-5612-0410-a976-696ce0be7e32