Patch merged into coreboot/master: nb/amd/amdfam10: Add HyperTransport probe filter support

the following patch was just integrated into master:
commit 0f1553b89a226d368f2accd443911a443b8d3a75
Author: Timothy Pearson 
Date:   Sun Aug 2 21:06:39 2015 -0500

nb/amd/amdfam10: Add HyperTransport probe filter support

All modern Opteron processors support the HT probe filter,
    which helps to increase coherent fabric performance by
    reducing the number of HT transactions per cache probe.

AMD recommends that the probe filter be enabled on all
    systems with more than two nodes, and it does not hurt
    to enable it on systems with 2 nodes.

Change-Id: I00a27a828260be8685ae622cfa5a4995add95a8e
    Signed-off-by: Timothy Pearson 
    Reviewed-on: http://review.coreboot.org/12021
    Tested-by: build bot (Jenkins)
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Alexandru Gagniuc

See http://review.coreboot.org/12021 for details.

-gerrit