Patch merged into coreboot/master: 18cb134 device/pciexp: Add support for PCIe CLK power management

the following patch was just integrated into master:
commit 18cb1340f185150b9708257ba8024b6900706083
Author: Kane Chen 
Date:   Wed Oct 1 11:13:54 2014 +0800

device/pciexp: Add support for PCIe CLK power management

Set PCIe "Enable Clock Power Management", if endpoint supports it.

BUG=chrome-os-partner:31424
    BRANCH=none
    TEST=build and boot on rambi, check Enable Clock Power Management
         in link control register is set properly

Change-Id: Ie54110d1ef42184cfcf47c9fe4d735960aebe47f
    Signed-off-by: Kane Chen 
    Reviewed-on: https://chromium-review.googlesource.com/220742
    Reviewed-by: Duncan Laurie 
    [Edit commit message.]
    Signed-off-by: Paul Menzel 
    Reviewed-on: http://review.coreboot.org/8447
    Tested-by: build bot (Jenkins)
    Reviewed-by: Kyösti Mälkki 
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/8447 for details.

-gerrit