PJSIP: Send initial connected line information

This makes chan_pjsip send connected line information when it is called
so that connected line information is available on the connected
channel.

(closes issue DPMA-442)
Reported by: John Bigelow
Review: https://reviewboard.asterisk.org/r/3584/


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@415191 f38db490-d61c-443f-a65b-d21fe96a405b