[coreboot] Resource allocation

[ron minnich]

In theory split resources can happen. In practice it never has. The
only real split is legacy IO/mem/vga. They are always supported on
every chipset to date by a 'decode legacy range' bit.

So, in practice, the extensive capabilities of the resource stuff have
not, as far as I know, every really been used. It always comes down
to'contiguous memory range' 'contiguous prefmem range' 'contiguous IO
range'

ron