remove the two uses of the $(or ...) function since it is only supported by

GNU make 3.81 which is less than 3 months old (issue #7442, patch by Corydon76)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@36226 65c4cc65-6c06-0410-ace0-fbb531ad65f3