Patch merged into coreboot/master: mainboard/lenovo: Power off USB and mute audio before entering S3

the following patch was just integrated into master:
commit 435d307415f56fb1df0b80ee6a064e5f8939cfe2
Author: Nicola Corna 
Date:   Wed Feb 22 16:52:29 2017 +0100

mainboard/lenovo: Power off USB and mute audio before entering S3

Currently, the USB ports are still powered during S3, so turning
    them off may reduce the power consumption.
    Note that, when the USB Always on feature is enabled, the USB
    ports are always powered, regardless of the USBP state.

This patch also disables the audio, as it might consume some
    power or generate some noise.

Both the USB power and the audio are reenabled by coreboot during
    the poweron.

Change-Id: If0431b1315fffef2e372e7023f830a66bb7fddae
    Signed-off-by: Nicola Corna 
    Reviewed-on: https://review.coreboot.org/18464
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexander Couzens

See https://review.coreboot.org/18464 for details.

-gerrit