Patch merged into coreboot/master: a74af56 Overhaul speedstep code

the following patch was just integrated into master:
commit a74af56dc1694fbeb8575825122d1081a30fe959
Author: Nico Huber 
Date:   Tue Oct 2 11:11:42 2012 +0200

Overhaul speedstep code

This adds proper support for turbo and super-low-frequency modes.
    Calculation of the p-states has been rewritten and moved into an
    extra file speedstep.c so it can be used for non-acpi stuff like
    EMTTM table generation.

It has been tested with a Core2Duo T9400 (Penryn) and a Core Duo T2300
    (Yonah) processor.

Change-Id: I5f7104fc921ba67d85794254f11d486b6688ecec
    Signed-off-by: Nico Huber 
    Reviewed-on: http://review.coreboot.org/1658
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

Build-Tested: build bot (Jenkins) at Thu Nov  1 14:09:37 2012, giving +1
Reviewed-By: Stefan Reinauer  at Mon Nov  5 21:24:36 2012, giving +2
See http://review.coreboot.org/1658 for details.

-gerrit