Set the AST_CDR_FLAG_ORIGINATED flag on originated channel's CDRs

This may alleviate some of the CDR woes with originated channels, as CDRs
do like to know when a channel was originated. Eventually this will get
converted to be a channel flag, so its location is still good to know
post the great CDR shakeup of 2013.

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@389306 f38db490-d61c-443f-a65b-d21fe96a405b