Add a configuration option so the global outboundproxy can use tcptls without...

Add a configuration option so the global outboundproxy can use tcptls without it being defined by each sip user.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@127154 65c4cc65-6c06-0410-ace0-fbb531ad65f3