[coreboot] Resource Allocation in v3

This patch has been languishing while I've been trying to hash out the dts stuff. The basic idea of this patch is that it splits resource allocation into three passes: Read Sum Assign This puts code with my mail from last week. It applies to head and compiles. It does a fairly good job on serengeti (the same allocations as before). I haven't tried it on other platforms. Signed-off-by: Myles Watson <mylesgw@gmail.com> Thanks, Myles