[coreboot] Patch merged into coreboot/master: 3001c5b armv7: include $(obj)/config.h when building bootblock

the following patch was just integrated into master:
commit 3001c5b69c85414e8d762610794dd0dafc3c1813
Author: David Hendricks 
Date:   Fri Feb 8 19:09:04 2013 -0800

armv7: include $(obj)/config.h when building bootblock

Explicitly including it allows us to get rid of some magic constants
    in the bootblock linker script.

Change-Id: I095899babc997addce6b383f00e5ebf135e99d5e
    Signed-off-by: David Hendricks 
    Reviewed-on: http://review.coreboot.org/2331
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Sat Feb  9 04:22:13 2013, giving +1
Reviewed-By: Ronald G. Minnich  at Sat Feb  9 05:00:58 2013, giving +2
See http://review.coreboot.org/2331 for details.

-gerrit