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 <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11440
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

0 files changed, 0 insertions, 0 deletions