[coreboot-gerrit] Patch merged into coreboot/master: gru: Add USB 2.0 PHY tuning for Kevin

the following patch was just integrated into master:
commit 1c8491c3ab75cc54c5288552b3ffb8513a3488aa
Author: Julius Werner 
Date:   Mon Aug 15 17:58:05 2016 -0700

gru: Add USB 2.0 PHY tuning for Kevin

This patch sets some magic number in magic undocumented registers that
    are rumored to make USB 2.0 signal integrity better on Kevin. I don't
    see any difference (unfortunately it doesn't solve the problems with
    long cables on my board), but I guess it doesn't hurt either way.

BRANCH=None
    BUG=chrome-os-partner:56108,chrome-os-partner:54788
    TEST=Booted Kevin with USB connected through Servo. Seems to have
    roughly the same failure rate as before.

Change-Id: If31fb49f1ed7218b50f24e251e54c9400db72720
    Signed-off-by: Martin Roth 
    Original-Commit-Id: 0c5c8f0f80ea1ebb042bcb91506a6100833e7e84
    Original-Change-Id: Ifbd47bf6adb63a2ca5371c0b05c5ec27a0fe3195
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/370900
    Original-Reviewed-by: Guenter Roeck 
    Original-Reviewed-by: David Schneider 
    Reviewed-on: https://review.coreboot.org/16265
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/16265 for details.

-gerrit