[coreboot-gerrit] Patch merged into coreboot/master: cbfstool: correct add-master-header logic to match runtime expectations

the following patch was just integrated into master:
commit bb826ef661f7ff390e284bcae6b0b330ca48ceb3
Author: Aaron Durbin 
Date:   Mon Jan 4 13:56:00 2016 -0600

cbfstool: correct add-master-header logic to match runtime expectations

The cbfs master header's offset and romsize fields are absolute values
    within the boot media proper. Therefore, when adding a master header
    provide the offset of the CBFS region one is operating on as well as
    the absolute end offset (romsize) to match expectations.

Built with and without CBFS_SIZE != ROM_SIZE on x86 and ARM device. Manually
    inspected the master headers within the images to confirm proper caclulations.

Change-Id: Id0623fd713ee7a481ce3326f4770c81beda20f64
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/12825
    Tested-by: build bot (Jenkins)
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Timothy Pearson

See https://review.coreboot.org/12825 for details.

-gerrit