Patch merged into coreboot/master: d2dac0a usbdebug: Allow an USB hub on the debug dongle

the following patch was just integrated into master:
commit d2dac0a7d62c89b24eae9de17bcfdde1aea7a5b3
Author: Kyösti Mälkki 
Date:   Fri Aug 23 23:33:16 2013 +0300

usbdebug: Allow an USB hub on the debug dongle

Some development kits with USB 2.0 HS OTG have an USB hub instead
    of being directly connected to the USB host/device controller.

Send the necessary initialisation sequence, using HUB CLASS requests
    of PORT_POWER and PORT_RESET to enable a pre-selected port number
    where a device supporting debug descriptor is located.

This also adds the Kconfig option for BeagleBone.

Change-Id: I7a5d0ba0962a9ca06bf3196232ed4a03bdfb2b06
    Signed-off-by: Kyösti Mälkki 
    Reviewed-on: http://review.coreboot.org/3925
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi 
    Reviewed-by: Paul Menzel

See http://review.coreboot.org/3925 for details.

-gerrit