Patch merged into coreboot/master: abuild: drop the ability to specify a configuration

the following patch was just integrated into master:
commit e6adabdf3a798b0dde19ae739a89662e244de65c
Author: Patrick Georgi 
Date:   Fri Oct 30 22:59:30 2015 +0100

abuild: drop the ability to specify a configuration

If you already have a configuration, there's no need to run it through
    abuild.

Change-Id: I4dde9a7b96bb0c08ec5c91426a4dd3aa15e74edf
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/12273
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexandru Gagniuc

See http://review.coreboot.org/12273 for details.

-gerrit