Patch merged into coreboot/master: nb/intel/sandybridge/raminit: move ram training into seperate function

the following patch was just integrated into master:
commit 27e085a8eea7f34ed4987b83c513d2f1818b33a1
Author: Patrick Rudolph 
Date:   Sat Mar 26 10:59:02 2016 +0100

nb/intel/sandybridge/raminit: move ram training into seperate function

In order to add a fallback mechanism, move the ram training code
    into a new function. This function will be called multiple times
    and must return error or success to the calling function.

Change-Id: I5ee1b3a528290d8252d236b9152b81291736958a
    Signed-off-by: Patrick Rudolph 
    Reviewed-on: https://review.coreboot.org/14169
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/14169 for details.

-gerrit