[coreboot] Patch merged into coreboot/master: 67113e9 haswell: Update GPU power management setup

the following patch was just integrated into master:
commit 67113e95cf054e051c63e813814b91f909798ac9
Author: Duncan Laurie 
Date:   Thu Jan 10 13:23:04 2013 -0800

haswell: Update GPU power management setup

This is the steps outlined in the BWG.

It seems this is a lot simpler now (so far) which is good.

To test, boot to chromeos with 3.7 kernel + i915.preliminary_hw_support=1 and
    see that the i915 driver complains a lot less than before and that a
    splashscreen is displayed.

Change-Id: I722c90ecd351860949cedab24533f6c10e5b90e5
    Signed-off-by: Duncan Laurie 
    Reviewed-on: http://review.coreboot.org/2696
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Wed Mar 13 05:36:11 2013, giving +1
Reviewed-By: Ronald G. Minnich  at Thu Mar 14 05:03:28 2013, giving +2
See http://review.coreboot.org/2696 for details.

-gerrit