[coreboot] Patch merged into coreboot/master: 13b6a88 Prevent multiple inclusions of object files and rules

the following patch was just integrated into master:
commit 13b6a887ba3b4c28b1695bdb1974dc6a6fa65cd8
Author: Patrick Georgi 
Date:   Tue Oct 25 14:32:21 2011 -0700

Prevent multiple inclusions of object files and rules

This removes 54 make warnings from the build

Change-Id: I94ac9875526febe2f95334c1c3971641c1d27f8f
    Signed-off-by: Stefan Reinauer 
    Signed-off-by: Patrick Georgi

Build-Tested: build bot (Jenkins) at Fri Oct 28 21:11:06 2011, giving +1
Reviewed-By: Stefan Reinauer  at Fri Oct 28 21:48:41 2011, giving +2
See http://review.coreboot.org/338 for details.

-gerrit