edac: i3200 memory controller driver

A driver for the Intel 3200 and 3210 memory controllers.  It has only had
light testing so far, and currently makes no attempt to decode error
addresses at anything finer than csrow granularity.

Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>