Patch merged into coreboot/master: soc/intel/apollolake: Let CSE know Ring Buffer Protocol is not needed

the following patch was just integrated into master:
commit 24a594f42a16b523534667ced65b06eb32bef1a0
Author: Andrey Petrov 
Date:   Tue Jun 28 17:37:09 2016 -0700

soc/intel/apollolake: Let CSE know Ring Buffer Protocol is not needed

On Apollolake CSE can be used to fetch firmware from boot media. However,
    when this feature is not used, CSE needs to be explicitly notified of it
    before memory training is complete. This way it can transition to next
    state.

BUG=chrome-os-partner:53876
    TEST=CSE can be power-gated during S0iX. Confirmed with LTB.

Change-Id: I5141bff350b6c0bb662424b7b709f0787ec5fd28
    Signed-off-by: Andrey Petrov 
    Reviewed-on: https://review.coreboot.org/15494
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin 
    Reviewed-by: Paul Menzel

See https://review.coreboot.org/15494 for details.

-gerrit