Patch merged into coreboot/master: fc0f517 chromeec: Add commands to check PD image type

the following patch was just integrated into master:
commit fc0f5175fbf8a60dbc1894484c69d8da246dd671
Author: Duncan Laurie 
Date:   Thu Sep 18 12:54:02 2014 -0700

chromeec: Add commands to check PD image type

Coreboot needs to be able to reboot the PD controller into RO
    image in recovery mode early in the boot process in order to
    avoid a lengthy recovery mode boot if it is only done at vboot
    software sync time.

In order to do this a new device index field is added to the
    command structure which must be initaalized to zero for all EC
    transactions.

This early init and image check code is only used in romstage so
    include it in the __PRE_RAM__ block.

BUG=chrome-os-partner:30079
    BRANCH=none
    TEST=build and boot on samus EVT in recovery mode and see that
    the PD is rebooted to RO mode early in the boot.

Change-Id: Iee60aae4d49b83b4a377b71e41e8109858a90223
    Signed-off-by: Stefan Reinauer 
    Original-Commit-Id: b36cf37d9b5a7053ecbd15c748eac84836d413e1
    Original-Change-Id: Iebc48709b527d3571618da775c849e1c3fcd6384
    Original-Signed-off-by: Duncan Laurie 
    Original-Reviewed-on: https://chromium-review.googlesource.com/218903
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/9204
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/9204 for details.

-gerrit