[coreboot] v3 HT

[ron minnich]

I think before we go much further you should all review:
statictree.c from serengeti
static.c from serengeti

how the links[] array works.

How the config space addressing is setup in in stage1 and how it is
used in stage2.

the interaction of the 18.1 routing tables and the allocation of mem,
prefmem, and IO spaces by the resource code.

Why there are three 18.1 devices and that interaction with resource allocators.