Patch merged into coreboot/master: bebf669 x86: use boot state callbacks to disable rom cache

the following patch was just integrated into master:
commit bebf66909a11201a1bbfbdf7f1af40285d76a457
Author: Aaron Durbin 
Date:   Wed Apr 24 20:59:43 2013 -0500

x86: use boot state callbacks to disable rom cache

On x86 systems there is a concept of cachings the ROM. However,
    the typical policy is that the boot cpu is the only one with
    it enabled. In order to ensure the MTRRs are the same across cores
    the rom cache needs to be disabled prior to OS resume or boot handoff.
    Therefore, utilize the boot state callbacks to schedule the disabling
    of the ROM cache at the ramstage exit points.

Change-Id: I4da5886d9f1cf4c6af2f09bb909f0d0f0faa4e62
    Signed-off-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/3138
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Tue Apr 30 01:13:51 2013, giving +1
Reviewed-By: Ronald G. Minnich  at Wed May  1 07:12:14 2013, giving +2
See http://review.coreboot.org/3138 for details.

-gerrit