Add another priv->has_ps check to kenwood.c

rigs/kenwood/kenwood.c

@@ -4843,9 +4843,15 @@ int kenwood_get_powerstat(RIG *rig, powerstat_t *status)
 {
     char pwrbuf[6];
     int retval;
+    struct kenwood_priv_data *priv = rig->state.priv;
 
     ENTERFUNC;
 
+    if (!priv->has_ps)
+    {
+        RETURNFUNC(RIG_OK); // fake the OK return for these rigs
+    }
+
     if (!status)
     {
         RETURNFUNC(-RIG_EINVAL);