From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
Until now arch_numa was directly translating firmware NUMA information
to memblock.
Using numa_memblks as an intermediate step has a few advantages:
* alignment with more battle tested x86 implementation
* availability of NUMA emulation
* maintaining node information for not yet populated memory
Replace current functionality related to numa_add_memblk() and
__node_distance() with the implementation based on numa_memblks and add
functions required by numa_emulation.
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Tested-by: Zi Yan <ziy@xxxxxxxxxx> # for x86_64 and arm64
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