Migrate references from the blade info structs to the per node hub info
structs.  This phases out the allocation of the list of per blade info
structs on node 0, in favor of a per node hub info struct allocated on
the node's local memory.

There are also some minor cosemetic changes in the comments and whitespace
to clean things up a bit.
Tested-by: NDimitri Sivanich <sivanich@sgi.com>
Tested-by: NJohn Estabrook <estabrook@sgi.com>
Tested-by: NGary Kroening <gfk@sgi.com>
Tested-by: NNathan Zimmer <nzimmer@sgi.com>
Signed-off-by: NMike Travis <travis@sgi.com>
Reviewed-by: NAndrew Banman <abanman@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20160429215404.987204515@asylum.americas.sgi.comSigned-off-by: NIngo Molnar <mingo@kernel.org>