Fix wait_morse in ts2000.c

https://github.com/Hamlib/Hamlib/issues/422

rigs/kenwood/ts2000.c

@@ -310,7 +310,7 @@ const struct rig_caps ts2000_caps =
     .set_ant =  kenwood_set_ant,
     .get_ant =  kenwood_get_ant,
     .send_morse =  kenwood_send_morse,
-    .wait_morse = rig_stop_morse,
+    .wait_morse = rig_wait_morse,
     .vfo_op =  kenwood_vfo_op,
     .scan =  kenwood_scan,
     .set_mem =  kenwood_set_mem,