Fix 5W level of ftdx10.c based on user testing

rigs/yaesu/ftdx10.c

@@ -137,7 +137,7 @@ const struct rig_caps ftdx10_caps =
     RIG_MODEL(RIG_MODEL_FTDX10),
     .model_name =         "FTDX-10",
     .mfg_name =           "Yaesu",
-    .version =            NEWCAT_VER ".3",
+    .version =            NEWCAT_VER ".4",
     .copyright =          "LGPL",
     .status =             RIG_STATUS_STABLE,
     .rig_type =           RIG_TYPE_TRANSCEIVER,