Patch merged into coreboot/master: google/veyron*: change .ddrconfig from 14 to 3

the following patch was just integrated into master:
commit f4401eb997dab0690261e0e42eab52131815d949
Author: ZhengShunQian 
Date:   Fri Oct 28 16:16:04 2016 +0800

google/veyron*: change .ddrconfig from 14 to 3

There are two configs, sdram-lpddr3-hynix-2GB.inc and
    sdram-lpddr3-samsung-2GB-24EB.inc that use .ddrconfig = 14.

Changing .ddrconfig from 14 to 3 improves performance
    especially on contiguous memory accesses. Comparing the .ddrconfig:
     - if .ddrconfig = 3,
       C RDRR RRRR RRRR RRRR RBBB CCCC CCCC C---
     - if .ddrconfig = 14,
       C DRBB BRRR RRRR RRRR RRRR CCCC CCCC C---
    where
     - R: indicates Row bits
     - B: indicates Bank bits
     - C: indicates Column bits
     - D: indicates Chip selects bits

.ddrconfig = 3 has multiple banks switching which improves DDR timing.

BUG=chrome-os-partner:57321
    TEST=Boot from fievel and play video
    BRANCH=veyron

Change-Id: Ifdcedc28e84429b8b79c7553b38b667631d29c09
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 93882e4f2000d93c9dae5e6d4b2e1f4b7bc9489e
    Original-Change-Id: Ic98ebae48609a7604ec678b6bd14dd2b29b669c4
    Original-Signed-off-by: ZhengShunQian 
    Original-Reviewed-on: https://chromium-review.googlesource.com/404691
    Original-Commit-Ready: Shunqian Zheng 
    Original-Tested-by: Shunqian Zheng 
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: https://review.coreboot.org/17210
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/17210 for details.

-gerrit