Patch merged into coreboot/master: 18c757a lenovo/x60: Unify volume button handling with common code.

the following patch was just integrated into master:
commit 18c757a7331ac0cb3bd1cd2359b39d2202d31bd5
Author: Vladimir Serbinenko 
Date:   Sun Feb 2 18:44:42 2014 +0100

lenovo/x60: Unify volume button handling with common code.

Change-Id: I45fe44a91f9f83a510b204e01dbaff9e8a9696ca
    Signed-off-by: Vladimir Serbinenko

See http://review.coreboot.org/5099 for details.

-gerrit