Patch merged into coreboot/master: cbfstool: Add 'hashcbfs' command to compute hash of CBFS region.

the following patch was just integrated into master:
commit 272a1f05b943d781acb8c04c01874bde9df3b774
Author: Aaron Durbin 
Date:   Tue Dec 15 18:00:30 2015 -0600

cbfstool: Add 'hashcbfs' command to compute hash of CBFS region.

For the purposes of maintaining integrity of a CBFS allow one to
    hash a CBFS over a given region. The hash consists of all file
    metadata and non-empty file data. The resulting digest is saved
    to the requested destination region.

BUG=chrome-os-partner:48412
    BUG=chromium:445938
    BRANCH=None
    TEST=Integrated with glados chrome os build. vboot verification
         works using the same code to generate the hash in the tooling
         as well as at runtime on the board in question.

Change-Id: Ib0d6bf668ffd6618f5f73e1217bdef404074dbfc
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/12790
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/12790 for details.

-gerrit