Patch merged into coreboot/master: libpayload: udc/dwc2: Ignore setup packet in check for queue empty during shutdown

the following patch was just integrated into master:
commit fe35623f20c4e94e59630143e6a01717f69851e8
Author: Furquan Shaikh 
Date:   Fri Nov 6 22:22:56 2015 -0800

libpayload: udc/dwc2: Ignore setup packet in check for queue empty
    during shutdown

DWC2 UDC controller always requires an active packet to be present in
    EP0-OUT to ensure proper operation of control plane. Thus, during
    shutdown ignore EP0-OUT for queue empty check if only 1 packet is
    present.

BUG=b:24676003
    BRANCH=None
    TEST=Compiles successfully. "fastboot reboot-bootloader" reboots
    device without timeout in udc shutdown.

Change-Id: Iafe46c80f58c4cd57f8d58f060d805b603506bbd
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 4e7c27d849c0411aae58e60a24d8170a27ab8485
    Original-Change-Id: Ifa493ce0e41964ee7ca8bb3a1f4bb8726fa11173
    Original-Signed-off-by: Furquan Shaikh 
    Original-Reviewed-on: https://chromium-review.googlesource.com/311257
    Original-Commit-Ready: Furquan Shaikh 
    Original-Tested-by: Furquan Shaikh 
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/12413
    Reviewed-by: Furquan Shaikh 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/12413 for details.

-gerrit