Patch merged into coreboot/master: 7e35efa ramstage: introduce boot state machine

the following patch was just integrated into master:
commit 7e35efa83cdd6240e4f9282cc4d2703c40d472d5
Author: Aaron Durbin 
Date:   Wed Apr 24 15:14:01 2013 -0500

ramstage: introduce boot state machine

The boot flow currently has a fixed ordering. The ordering
    is dictated by the device tree and on x86 the PCI device ordering
    for when actions are performed. Many of the new machines and
    configurations have dependencies that do not follow the device
    ordering.

In order to be more flexible the concept of a boot state machine
    is introduced. At the boundaries (entry and exit) of each state there
    is opportunity to run callbacks. This ability allows one to schedule
    actions to be performed without adding board-specific code to
    the shared boot flow.

Change-Id: I757f406c97445f6d9b69c003bb9610b16b132aa6
    Signed-off-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/3132
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Mon Apr 29 23:32:50 2013, giving +1
Reviewed-By: Ronald G. Minnich  at Wed May  1 07:04:46 2013, giving +2
See http://review.coreboot.org/3132 for details.

-gerrit