Patch merged into coreboot/master: nb/amdmct/mct_ddr3: Enable mainboard voltage set

the following patch was just integrated into master:
commit 8e9106db2064b3ab96ea840b60ab14c8fb558449
Author: Timothy Pearson 
Date:   Tue Nov 24 14:11:53 2015 -0600

nb/amdmct/mct_ddr3: Enable mainboard voltage set

The existing code used an incorrect macro name to check for mainboard
    DRAM voltage set support, and as a result no voltages were actually
    set.  Furthermore, the existing code did not contain a centralized
    voltage assumption for boards that did not have a DIMM voltage set
    implementation.

Use the correct macro name to test for boards with voltage set
    implementation, and provide a basic fallback to 1.5V operation
    for boards without a voltage set implementation.

Change-Id: I638c65fe013a8e600694d8cbedf6a10b33b0ef95
    Signed-off-by: Timothy Pearson 
    Reviewed-on: https://review.coreboot.org/13150
    Tested-by: build bot (Jenkins)
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/13150 for details.

-gerrit