Patch merged into coreboot/master: 8e19fa4 USBDEBUG: retry harder for slow devices

the following patch was just integrated into master:
commit 8e19fa4fc269682c98b5b2a63c6b6e0153979deb
Author: Sven Schnelle 
Date:   Wed Jul 25 14:19:45 2012 +0200

USBDEBUG: retry harder for slow devices

Some usb debug devices don't respond fast enough. The linux kernel
    (which uses almost the same usbdebug code) added a bit more
    retry code, so let's copy that. Even if it might look stupid,
    i pass the DBG_LOOPS argument through all functions to keep
    the code at least a bit in sync with the linux kernel code.

Change-Id: I7c4b63b8bf1d2270fd6b8c8aa835e2cb324820bd
    Signed-off-by: Sven Schnelle

Build-Tested: build bot (Jenkins) at Sat Jul 28 09:08:15 2012, giving +1
Reviewed-By: Stefan Reinauer  at Mon Jul 30 20:24:43 2012, giving +2
Reviewed-By: Sven Schnelle  at Mon Jul 30 20:54:24 2012, giving +2
See http://review.coreboot.org/1375 for details.

-gerrit