Patch merged into coreboot/master: northbridge/intel: move mrccache.c of sandybridge + haswell to common

the following patch was just integrated into master:
commit 92fc072c2faf3d1be82f50ee3feda42461e9ac16
Author: Alexander Couzens 
Date:   Wed Mar 9 14:36:46 2016 +0100

northbridge/intel: move mrccache.c of sandybridge + haswell to common

The sourcecode is 99% the same. Only two lines differ, but not
    in functionality.
    Also rename mrccache.c -> mrc_cache.c

Tested-on: boot + suspend/resume on x220

Change-Id: I36f79d066336f223b608c70c847ea6ea6e4ad287
    Signed-off-by: Alexander Couzens 
    Reviewed-on: https://review.coreboot.org/14007
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/14007 for details.

-gerrit