dual_power_monitor_smartplugv2: fix initial state config

custom_components/tuya_local/devices/dual_power_monitor_smartplugv2.yaml

@@ -137,7 +137,7 @@ secondary_entities:
     icon: "mdi:toggle-switch"
     category: config
     dps:
-      - id: 
+      - id: 38
         type: string
         name: option
         optional: true