[coreboot] Patch merged into coreboot/master: b9f4b09 libpayload: Fix detach_contoller in the USB driver

the following patch was just integrated into master:
commit b9f4b09e465b23cbaab10be2b637a6c82ae1e4cd
Author: Anton Kochkov 
Date:   Wed Jun 20 03:57:18 2012 +0400

libpayload: Fix detach_contoller in the USB driver

Fixed usb controllers linked list walking in
    detach_controller() function

Change-Id: Ia97c7ec814f75d2b1bfe185f160fb4cd32aa6fdb
    Signed-off-by: Anton Kochkov

Build-Tested: build bot (Jenkins) at Wed Jun 20 02:32:45 2012, giving +1
Reviewed-By: Nico Huber  at Wed Jun 20 17:44:58 2012, giving +2
See http://review.coreboot.org/1105 for details.

-gerrit