Patch merged into coreboot/master: 028cba9 ipq806x: Add USB support

the following patch was just integrated into master:
commit 028cba9266e531d9d7c5e39432bbb7eeda6398ed
Author: Julius Werner 
Date:   Fri May 30 18:01:44 2014 -0700

ipq806x: Add USB support

This patch adds code to initialize the two DWC3 USB host controllers and
    their associated PHYs to the IPQ806x SoC (closely imitating the existing
    DWC3 implementation for Exynos5), and uses them to initialize USB on the
    Storm mainboard.

BUG=chrome-os-partner:29375
    TEST=Hack up netboot to get around missing SPI flash, load a file over
    TFTP. Hack a storage read into the storage attach function, dump the
    data and confirm that it looks right. Enable USB debugging and confirm
    3.0 devices get enumerated at SuperSpeed (mostly).

Original-Change-Id: Iaf7b96bef994081ca222b7de9d8e8c49751d3f1d
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/202157
    Original-Reviewed-by: David Hendricks 
    Original-Reviewed-by: Vadim Bendebury 
    (cherry picked from commit 6349e7281d5accb1247acb0537a48fa3a5e1bf97)
    Signed-off-by: Marc Jones

Change-Id: I749d265d45c6a807a7559bd4df2490a6eb8067af
    Reviewed-on: http://review.coreboot.org/8056
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/8056 for details.

-gerrit