Patch merged into coreboot/master: 02b606b buildgcc: defer cleaning up the tree a bit

the following patch was just integrated into master:
commit 02b606ba4038219338faf0c2884d802f771436a1
Author: Patrick Georgi 
Date:   Thu Dec 19 22:06:22 2013 +0100

buildgcc: defer cleaning up the tree a bit

cleanup() uses BUILDDIRPREFIX, which is set after the
    getopt loop.

Change-Id: I8a904781ee4fefc42681d31e94b64008cf03750a
    Signed-off-by: Patrick Georgi

See http://review.coreboot.org/4544 for details.

-gerrit