Merge tag 'numascale' into x86/platform

This patchset adds support for federated systems where multiple memory
controllers can exist and see each other over multiple PCI domains. This
basically means that AMD node ids can be more than 8 now and the code
handling this is taught to incorporate PCI domain into those IDs.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>