Fixes up the kbuild to work with compiling OSLEC from the kernel source. See HOWTO here: http://forums.digium.com/viewtopic.php?t=67164 Internal-Issue-ID: DAHLIN-317 Reported-By: Vladimir Mikhelson Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>