[coreboot] Patch merged into coreboot/master: 563afcd buildgcc: redirect error output to /dev/null

the following patch was just integrated into master:
commit 563afcd6d28d8cca80392bf4c893096a8be4d28a
Author: Zheng Bao 
Date:   Tue Oct 23 19:41:25 2012 +0800

buildgcc: redirect error output to /dev/null

Change-Id: I7cd63248eb8abb711cecce41e3f8a282b34aa126
    Signed-off-by: Zheng Bao 
    Signed-off-by: Zheng Bao

Reviewed-By: Patrick Georgi  at Fri Oct 26 12:51:15 2012, giving +2
See http://review.coreboot.org/1548 for details.

-gerrit