Fix rigctl -o with rigctld

https://github.com/Hamlib/Hamlib/issues/287

src/rig.c

@@ -1459,7 +1459,7 @@ int HAMLIB_API rig_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
     // If we're in vfo_mode then rigctld will do any VFO swapping we need
     if ((caps->targetable_vfo & RIG_TARGETABLE_FREQ)
             || vfo == RIG_VFO_CURR || vfo == rig->state.current_vfo
-            || rig->state.vfo_opt == 1)
+            || (rig->state.vfo_opt == 1 && rig->caps->rig_model == RIG_MODEL_NETRIGCTL))
 {
     // If rig does not have set_vfo we need to change vfo
     if (vfo == RIG_VFO_CURR && caps->set_vfo == NULL)