Patch merged into coreboot/master: 2d9d39a lynxpoint: Enable USB clock gating, late setup, and sleep prep

the following patch was just integrated into master:
commit 2d9d39a7041cf531246845194f76cb9f65eaa08d
Author: Duncan Laurie 
Date:   Wed May 29 15:27:55 2013 -0700

lynxpoint: Enable USB clock gating, late setup, and sleep prep

Both EHCI and XHCI controllers have additional setup steps
    that are not part of the PEI reference code so they need to
    be done later.

Both controllers also have specific clock gating setup
    requirements that are now implemented.

Additionally they both have specific requirements when entering
    sleep states.  XHCI needs something in S3/S4/S5 and EHCI only
    has steps for S4/S5 entry.

Change-Id: Ic62cbc8b6255455e56b72dd5d52e27a311999330
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://gerrit.chromium.org/gerrit/57033
    Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/4217
    Tested-by: build bot (Jenkins)
    Reviewed-by: Ronald G. Minnich

See http://review.coreboot.org/4217 for details.

-gerrit