[coreboot] Patch merged into coreboot/master: dddbbed AMD Family15tn: Set the mask of MTRR to 0000FFFXX0000800

the following patch was just integrated into master:
commit dddbbed1725ae8a781c3cecd39d3cf5e354d33ff
Author: zbao 
Date:   Tue Jul 24 17:56:48 2012 +0800

AMD Family15tn: Set the mask of MTRR to 0000FFFXX0000800

Remove the warning message from linux dmesg,
    mtrr: your BIOS has configured as incorrect mask, fixing it.

Change-Id: I355509db12ab10c33b7c1c23e2c7c4783f30e67e
    Signed-off-by: Zheng Bao 
    Signed-off-by: zbao

Build-Tested: build bot (Jenkins) at Wed Jul 25 05:46:11 2012, giving +1
Reviewed-By: Ronald G. Minnich  at Wed Jul 25 22:20:55 2012, giving +2
See http://review.coreboot.org/1349 for details.

-gerrit