Patch merged into coreboot/master: nb/amd/mct_ddr3: Clear early MCEs and report DRAM MCEs

the following patch was just integrated into master:
commit c00f4d669dd03bf5a4ee8c255bb71fc86f229239
Author: Timothy Pearson 
Date:   Wed Mar 30 13:07:47 2016 -0500

nb/amd/mct_ddr3: Clear early MCEs and report DRAM MCEs

During power on from cold (S5) state, numerous MCEs are generated
    before DRAM training starts, e.g. during HT link training.  Clear
    these MCEs before DRAM training start, and report any MCEs generated
    during DRAM training.

Change-Id: I7d047571242e5bd041e4aac22c1ec1d7d26ef0e6
    Signed-off-by: Timothy Pearson 
    Reviewed-on: https://review.coreboot.org/14191
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth 
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Paul Menzel

See https://review.coreboot.org/14191 for details.

-gerrit