[coreboot-gerrit] Patch merged into coreboot/master: abuild: Add option of starting with an existing defconfig file

the following patch was just integrated into master:
commit 10008107b7786c3c8b9a88d5b24a9b08e2896b47
Author: Martin Roth 
Date:   Wed Mar 9 13:12:10 2016 -0700

abuild: Add option of starting with an existing defconfig file

We want to start testing builds with additional Kconfig options to try
    to get more coverage.  This will allow us to enable various options to
    test without having to add each individual option to the abuild script.

Change-Id: I9bb2bb6f38589e3bcc1282dc4cad51cf6f5149aa
    Signed-off-by: Martin Roth 
    Reviewed-on: https://review.coreboot.org/14016
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/14016 for details.

-gerrit