Patch merged into coreboot/master: 4815913 build system: Mark clean-for-update phony

the following patch was just integrated into master:
commit 4815913968a1077fa7e56d8ec226a9cf18c80ea9
Author: Patrick Georgi 
Date:   Mon Feb 11 20:56:46 2013 +0100

build system: Mark clean-for-update phony

build system hygiene, not known if this actually matters.

Change-Id: Ic800a2acecff123fc2055047fab67df107ac43ab
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/2356
    Reviewed-by: Stefan Reinauer 
    Tested-by: build bot (Jenkins)

Build-Tested: build bot (Jenkins) at Mon Feb 11 21:21:16 2013, giving +1
Reviewed-By: Stefan Reinauer  at Mon Feb 11 21:13:36 2013, giving +2
See http://review.coreboot.org/2356 for details.

-gerrit