Patch merged into coreboot/master: Makefile: Use variables defined for Kconfig

the following patch was just integrated into master:
commit de60c8899680f362a908d68efe9e4154ab3380be
Author: Stefan Reinauer <[e-mail]>
Date:   Mon Jun 29 14:44:37 2015 -0700

    Makefile: Use variables defined for Kconfig
    
    Change-Id: I72df5fef187e12d1c3c2409449dc9d9b7b80a5e2
    Signed-off-by: Stefan Reinauer <[e-mail]>
    Reviewed-on: http://review.coreboot.org/10709
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel <[e-mail]>
    Reviewed-by: Patrick Georgi <[e-mail]>


See http://review.coreboot.org/10709 for details.

-gerrit