Patch merged into coreboot/master: payloads: Reorganize Kconfig for external payloads

the following patch was just integrated into master:
commit 1a8b7bfe506c39ee595eef84f19d8c75245e27de
Author: Stefan Reinauer 
Date:   Tue Jun 30 15:58:56 2015 -0700

payloads: Reorganize Kconfig for external payloads

The integration of external payloads in coreboot
    is a bit messy. You have to change the to level Kconfig
    file for every payload (something that we recently fixed
    for mainboards and chipsets). This means that updating
    e.g. the SeaBIOS version requires a change outside of the
    SeaBIOS directory.

With this patch you can create a new directory under
    payloads/external and place a Kconfig and Kconfig.name
    file in there, and the payload will automatically show
    up when you do "make menuconfig".

Change-Id: I293abcb8eae581d4b3934e64897c0d339a27e7c1
    Signed-off-by: Stefan Reinauer 
    Reviewed-on: http://review.coreboot.org/10828
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/10828 for details.

-gerrit