Patch merged into coreboot/master: f78a09b kconfig: Add wildcard support for "source"

the following patch was just integrated into master:
commit f78a09b60c4ce24e2455615722dd6ed8e2ba85e2
Author: Stefan Reinauer 
Date:   Fri Apr 3 20:01:38 2015 +0200

kconfig: Add wildcard support for "source"

Kconfig's include directive "source" does not support
    wildcards (e.g. source src/mainboard/*/Kconfig) which
    makes automatic inclusion of all boards a tedious task
    and prevents us from implementing "drop in" boards.

In our Makefile.inc files we already include mainboard
    directories per wildcard, so let's add the infrastructure
    to do the same with Kconfig.

Change-Id: I1988ff6ce3e167e86bb5cb65fc04a13748599dad
    Signed-off-by: Stefan Reinauer 
    Reviewed-on: http://review.coreboot.org/9294
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/9294 for details.

-gerrit