add function from rev 1312 ldl_handle_send_msg to def file

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1314 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/libdingaling/src/dingaling.def

@@ -23,3 +23,4 @@ ldl_handle_ready
 ldl_session_get_id
 ldl_session_set_ip
 ldl_global_set_logger
+ldl_handle_send_msg
\ No newline at end of file