[coreboot] Patch merged into coreboot/master: 915f427 S3 code in coreboot public folder.

the following patch was just integrated into master:
commit 915f42708f3dad4f34d06fd8af89ca8d90177b4b
Author: zbao 
Date:   Fri Apr 13 13:42:15 2012 +0800

S3 code in coreboot public folder.

1. Move the Stack to high memory.
    2. Restore the MTRR before Coreboot jump to the wakeup vector.

Change-Id: I9872e02fcd7eed98e7f630aa29ece810ac32d55a
    Signed-off-by: Zheng Bao 
    Signed-off-by: zbao

Build-Tested: build bot (Jenkins) at Fri Apr 13 07:03:19 2012, giving +1
Reviewed-By: Marc Jones  at Mon Apr 16 18:22:46 2012, giving +2
See http://review.coreboot.org/623 for details.

-gerrit