Patch merged into coreboot/master: 230fe0e AMD Steppe Eagle: Disable "No Snoop Enable" to stop HDMI audio stutter

the following patch was just integrated into master:
commit 230fe0ef2f2e565a1b67ffea946d77c3c24ac0d4
Author: Bruce Griffith 
Date:   Sun Aug 31 22:40:57 2014 -0600

AMD Steppe Eagle: Disable "No Snoop Enable" to stop HDMI audio stutter

Ubuntu's HDMI audio has noise and echo. Disable NoSnoopEnable can
    resolve this issue.  The posted amd_late_init.c northbridge code
    is missing a test for Steppe Eagle northbridges.  See coreboot Gerrit
    change 3934, commit ID 4ca721399c (AMD Olive Hill: Disable
    NoSnoopEnable to fix HDMI audio corruptions with Ubuntu).

Change-Id: I89894d0ce4ad72ea16d61b445edb9e67920bca24
    Signed-off-by: Bruce Griffith 
    Reviewed-on: http://review.coreboot.org/6822
    Tested-by: build bot (Jenkins)
    Reviewed-by: WANG Siyuan 
    Reviewed-by: Ronald G. Minnich

See http://review.coreboot.org/6822 for details.

-gerrit