Patch merged into coreboot/master: 1c09710 haswell: Remove limit on package C-state

the following patch was just integrated into master:
commit 1c097107099201e60be5745b839268752878dc34
Author: Duncan Laurie 
Date:   Tue May 7 13:19:56 2013 -0700

haswell: Remove limit on package C-state

With the XHCI controller enabled we no longer hang the
    system when dropping into a package C-state so remove
    the code that was disabling it.

Change-Id: Icd60488fd2506dac04fb6ec96a77bec265b10d8c
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://gerrit.chromium.org/gerrit/50355
    Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/4163
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexandru Gagniuc

See http://review.coreboot.org/4163 for details.

-gerrit