Patch merged into coreboot/master: cbfstool: unify actual file creation

the following patch was just integrated into master:
commit dd2d3f933a45a2fa48af344bd8ab50bb06c212de
Author: Patrick Georgi 
Date:   Wed Aug 12 12:29:20 2015 +0200

cbfstool: unify actual file creation

After the preparation in earlier commits, it is now possible to handle the
    more general case of position independent files using the special code path
    for fixed location files.

This leads to a single place where non-empty cbfs file headers are actually
    written into the image, allowing us to move it up the chain more easily.

Change-Id: I8c1fca5e4e81c20971b2960c87690e982aa3e274
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/11222
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See http://review.coreboot.org/11222 for details.

-gerrit