Patch merged into coreboot/master: amd/amdmct/mct_ddr3: Fix poor performance on Family 15h CPUs

the following patch was just integrated into master:
commit 845b00ce3344d1483d98cddcf59f317a1b96da64
Author: Timothy Pearson 
Date:   Fri Aug 7 19:05:29 2015 -0500

amd/amdmct/mct_ddr3: Fix poor performance on Family 15h CPUs

Change-Id: Ib6bc197e43e40ba2b923b1eb1229bacafc8be360
    Signed-off-by: Timothy Pearson 
    Reviewed-on: http://review.coreboot.org/12029
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/12029 for details.

-gerrit