[coreboot] Patch merged into coreboot/master: 884dcde Add cmos helper functions for reading/writing a dword

the following patch was just integrated into master:
commit 884dcdef1ee04a23ccf25d29cf4fcce2087b47af
Author: Duncan Laurie 
Date:   Mon Sep 26 13:24:40 2011 -0700

Add cmos helper functions for reading/writing a dword

These get used later for saving/restoring the MRC scrambler
    seed values on each boot.

Change-Id: I6e23f17649bea6d22c4b279ed8d0e5cb6c0885e7
    Signed-off-by: Duncan Laurie

Build-Tested: build bot (Jenkins) at Fri Mar  9 15:18:00 2012, giving +1
Reviewed-By: Stefan Reinauer  at Wed Mar 28 21:35:10 2012, giving +2
See http://review.coreboot.org/717 for details.

-gerrit