[coreboot-gerrit] Patch merged into coreboot/master: google/gru & kevin: Update DRAM configuration

the following patch was just integrated into master:
commit 3707fc2d961720152e7e96bc1606b893023cb577
Author: Lin Huang 
Date:   Mon Jul 11 17:09:53 2016 +0800

google/gru & kevin: Update DRAM configuration

We need to enable DRAM ODT on kevin/gru board to improve the
    DRAM signal. Note, if the DRAM ODT is enabled and set to 120ohms,
    the sdram VREF need to adjust to 840mv.

This patch also makes following changes:
    1. For compatiblity with the  old board, add the
    "sdram-lpddr3-hynix-4GB-666-no-odt.inc" and
    "sdram-lpddr3-hynix-4GB-800-no-odt.inc" files
    which do not enable sdram ODT.
    2. Delete the 300MHz dram inc file. The 300MHz sdram config just
    reduced 666MHz to 300MHz based on the 666MHz config file, and it is
    not stable, so delete it.
    3. Delete the 928MHz dram inc file, 928MHz sdram config still in
    debuging, delete it for now.

BRANCH=none
    BUG=chrome-os-partner:54871
    TEST=run "stressapptest -M 1024 -s 1000" on kevin board and pass

Change-Id: If0248e1bc4cef2c298762080f1ca018653af0521
    Signed-off-by: Martin Roth 
    Original-Commit-Id: 78d8a28e2d3489c99c9bba2c1c9aa76812e2e33f
    Original-Change-Id: I35f0685782d6fb178a95780ec77c45f565dd2194
    Original-Signed-off-by: Lin Huang 
    Original-Reviewed-on: https://chromium-review.googlesource.com/358763
    Original-Commit-Ready: Dan Shi 
    Original-Tested-by: Caesar Wang 
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: https://review.coreboot.org/15813
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/15813 for details.

-gerrit