[coreboot-gerrit] Patch merged into coreboot/master: libpayload: xhci: Carry over fixes from Chromium tree

the following patch was just integrated into master:
commit 5f9a3f7fae0154008d4dfeeb2f3a84c6a5714e52
Author: Julius Werner 
Date:   Mon Aug 3 14:21:07 2015 -0700

libpayload: xhci: Carry over fixes from Chromium tree

This patch re-adds a few fixes that originally went into the
    chromeos-2013.04 tree. I kinda seem to have slipped them into the
    backport of Nico's original XHCI patch (crosreview.com/168097) instead
    of making a new change, which was not very clever and caused them to be
    forgotten in the later upstreaming wave.

Changing internal XHCI error numbers is just a cosmetic change to make
    them uniquely identifyable in debug output. Bumping the timeout to 3
    seconds is an actually important fix since we have seen mass storage
    devices needing that much in the past.

BRANCH=None
    BUG=None
    TEST=Diffed payloads/libpayload/drivers/usb between chromeos-2013.04 and
    chromeos-2015.07, confirmed that no serious differences remain.

Original-Change-Id: I03d865dbe536072d23374a49a0136e9f28568f8e
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/290423
    Original-Reviewed-by: Aaron Durbin

Change-Id: I5d773d3a23683fb2164916cc046f4a711b8d259e
    Signed-off-by: Julius Werner 
    Reviewed-on: http://review.coreboot.org/11178
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/11178 for details.

-gerrit