More Cisco and LWAP specific stuff added.

WTP cann connect to a WLC and wait for and dump config update requests.

FossilOrigin-Name: 5b69ac4d9fd9f9a54395fe24de3456fff3bb76458d64c863d3cb7245dbda629c

src/capwap/cwmsg_init_echo_request.c

@@ -22,7 +22,7 @@
 
 void cwmsg_init_echo_request(struct cwmsg * cwmsg,uint8_t *buffer,struct conn * conn, struct radioinfo * radioinfo)
 {
-	cwmsg_init(cwmsg,buffer,CWMSG_ECHO_REQUEST,conn_get_next_seqnum(conn),radioinfo);
+	cwmsg_init(cwmsg,buffer,CW_MSG_ECHO_REQUEST,conn_get_next_seqnum(conn),radioinfo);
 }