[coreboot] Resource Allocation discussion

[Myles Watson]

The resource patches I submitted work fairly well, but still need a little
help.

I haven't touched subtractively decoded resources, and that's where the
breakage is right now.

Questions:
- Who should have a resource that moves all other IO resources above 0x400
or 0x1000?
- Is one needed if subtractive resources are implemented correctly?
- Who is responsible for setting the top of the address range?
   - From an earlier thread with Carl-Daniel it sounded like there are fixed
locations for APICs that need to be avoided.  Where should these be avoided?

Thanks,
Myles