Patch merged into coreboot/master: 7f28e4e broadwell: Enable turbo ratio if available

the following patch was just integrated into master:
commit 7f28e4ee01cb91750ce6fb84e77e5c7c86afd3ea
Author: Duncan Laurie 
Date:   Wed Dec 10 08:16:43 2014 -0800

broadwell: Enable turbo ratio if available

When turning up the CPU frequency set it to turbo if that is
    a possibility.  Also only set the frequency on the boot CPU
    since that is all we need it on, this will allow the 1-core
    turbo ratio.

BUG=chrome-os-partner:28234
    BRANCH=samus,auron
    TEST=build and boot on samus

Change-Id: I573eb7a507305814ec48cc2f624b8e6ddad43f84
    Signed-off-by: Stefan Reinauer 
    Original-Commit-Id: d408c1b462983c682d61c6c447692391c2b52183
    Original-Change-Id: Ib5ad746767ee0a56bc7e59de679a9342f053c0e5
    Original-Signed-off-by: Duncan Laurie 
    Original-Reviewed-on: https://chromium-review.googlesource.com/234401
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/9281
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/9281 for details.

-gerrit