Fix broken call pickup

The problem was the OUTGOING flag was not getting set properly on the channel,
resulting in pickup failing as ast_read thought the call was inbound. Refer to
170393 for a more verbose description as this is the same exact change.

(closes issue #16539)
Reported by: syspert
Patches: 
      bug16539.patch uploaded by jpeeler (license 325)
Tested by: syspert


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@240179 65c4cc65-6c06-0410-ace0-fbb531ad65f3