Patch merged into coreboot/master: cbfstool: add new add-master-header command

the following patch was just integrated into master:
commit 59e52b975e3ffe29709f82e57849ccf8254b9cd1
Author: Patrick Georgi 
Date:   Thu Sep 10 15:28:27 2015 +0200

cbfstool: add new add-master-header command

The command adds a new cbfs file, fills in the CBFS meta data in cbfs
    master header format, then points the master header pointer (which
    resides at the last 4 bytes of the CBFS region) to the data area of the
    new file.

This can leak some space in CBFS if an old-style CBFS with native master
    header gets the treatment, because a new header is created and pointed
    at. flashmap based images have no such header, and the attempt to create
    a second file with the (hardcoded) name will fail.

Change-Id: I5bc7fbcb5962b35a95261f30f0c93008e760680d
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/11628
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See http://review.coreboot.org/11628 for details.

-gerrit