[coreboot] Patch merged into coreboot/master: 15ba2bc Intel HD Audio: clean up initialization code

the following patch was just integrated into master:
commit 15ba2bcf2d78181de1047f46b6ae28e44fbd3f86
Author: Stefan Reinauer 
Date:   Wed Nov 14 12:25:15 2012 -0800

Intel HD Audio: clean up initialization code

- Some initialization steps were done twice
    - One step was missing for Panther Point HDA
    - Added a 1ms delay after reset
    - Increased timeout to 1ms for all codec operations

Change-Id: Ib751f1a16ccd88ea2fbbb2a10737f76277574026
    Signed-off-by: Stefan Reinauer 
    Reviewed-on: http://review.coreboot.org/2518
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Tue Feb 26 02:11:56 2013, giving +1
Reviewed-By: Ronald G. Minnich  at Sun Mar 17 22:54:55 2013, giving +2
See http://review.coreboot.org/2518 for details.

-gerrit