app_queue: PAUSEALL/UNPAUSEALL logged only if interface is a queue member

Adding UPGRADE.txt entry for r372148

(issue AST-946)
Reported by: John Bigelow


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@372149 65c4cc65-6c06-0410-ace0-fbb531ad65f3