Patch merged into coreboot/master: soc/intel/common: Add mrc.cache file to CBFS when appropriate

the following patch was just integrated into master:
commit bc140cf1114ba08966f8940e1047f7ee4c35da75
Author: Alexandru Gagniuc 
Date:   Fri Aug 28 14:28:35 2015 -0400

soc/intel/common: Add mrc.cache file to CBFS when appropriate

The code in mrc_cache.c doesn't check for the presence of 'mrc.cache',
    and just returns hardcoded value for he location of he MRC cache. This
    becomes a problem when there is a CBFS file at the same location,
    which can get overwritten. A CBFS file is created to cover this region
    so that nothing can be added there.
    This has the advantage of creating a build time error if another cbfs
    file is hardcoded over the same region.

The default location of the MRC cache is also moved to 4G - 128K to
    ensure that it defaults to something within CBFS.

Change-Id: Ic029c182f5a2180cb680e09b25165ee303a448a3
    Signed-off-by: Alexandru Gagniuc 
    Reviewed-on: http://review.coreboot.org/11440
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See http://review.coreboot.org/11440 for details.

-gerrit