Patch merged into coreboot/master: Combine Broadwell Chromeboxes using variant board scheme

the following patch was just integrated into master:
commit 0148fcb4e1d1c4e43cd21e7b28a65afd762daa6d
Author: Matt DeVillier 
Date:   Sat Dec 17 17:13:23 2016 -0600

Combine Broadwell Chromeboxes using variant board scheme

Combine existing boards google/guado, rikku, and tidus using
    their common reference board google/jecht as a base.

Additional changes besides simple consolidation include:
     - simplify power LED functions
     - simplify HDA verb definitions using azelia macros
     - use common SoC functions to generate FADT table
     - correct FADT table header version
     - remove unused haswell_pci_irqs.asl
     - remove unused header includes (various)
     - set sane default fan speed (0x4d) for all variants

Variant setup modeled after google/beltino

Change-Id: I77a2dffe9601734916a33fd04ead98016ad0bc4b
    Signed-off-by: Matt DeVillier 
    Reviewed-on: https://review.coreboot.org/17913
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/17913 for details.

-gerrit