[coreboot-gerrit] Patch merged into coreboot/master: cbfstool: Add support for hashes as file metadata

the following patch was just integrated into master:
commit 89f20340d5a4c14ab76d3612cd33fff8894602ec
Author: Patrick Georgi 
Date:   Thu Oct 1 15:54:04 2015 +0200

cbfstool: Add support for hashes as file metadata

They allow optimizing a verification of a whole CBFS image by only
    dealing with the headers (assuming you choose to trust the hash
    algorithm(s)).

The format allows for multiple hashes for a single file, and cbfstool
    can handle them, but right now it can't generate such headers.

Loosely based on Sol's work in http://review.coreboot.org/#/c/10147/,
    but using the compatible file attribute format. vboot is now a hard
    dependency of the build process, but we import it into the tree for
    quite a while now.

Change-Id: I9f14f30537d676ce209ad612e7327c6f4810b313
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/11767
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See http://review.coreboot.org/11767 for details.

-gerrit