x86/mm: Add support for the non-standard protected e820 type

Various recent BIOSes support NVDIMMs or ADR using a
non-standard e820 memory type, and Intel supplied reference
Linux code using this type to various vendors.

Wire this e820 table type up to export platform devices for the
pmem driver so that we can use it in Linux.

Based on earlier work from:

   Dave Jiang <[email protected]>
   Dan Williams <[email protected]>

Includes fixes for NUMA regions from Boaz Harrosh.

Tested-by: Ross Zwisler <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Dan Williams <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Boaz Harrosh <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Keith Busch <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
[ Minor cleanups. ]
Signed-off-by: Ingo Molnar <[email protected]>

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