[coreboot] Patch merged into coreboot/master: a8c3524 Add support for enabling PCIe Common Clock and ASPM

the following patch was just integrated into master:
commit a8c35245174b3e3f7bd92025468fa54433041fda
Author: Duncan Laurie 
Date:   Tue Oct 25 14:15:11 2011 -0700

Add support for enabling PCIe Common Clock and ASPM

These are guarded by individual Kconfig entries. The deprecated
    CONFIG_PCIE_TUNING defines have been removed in favor of using specific
    config options.

This is the generic half, there is board-specific pieces
    still to come that tune before and after ASPM is enabled.

Change-Id: I3fe46282eada67629e9eeeed07e487dff54f2729
    Signed-off-by: Duncan Laurie

Build-Tested: build bot (Jenkins) at Sat Mar 10 05:16:04 2012, giving +1
See http://review.coreboot.org/735 for details.

-gerrit