fix(atorch_s1bw_smartplug): disable switch in auto mode

In auto mode, switching manually does not work.

Issue #3253

custom_components/tuya_local/devices/atorch_s1bw_smartplug.yaml

@@ -11,6 +11,13 @@ entities:
         type: boolean
         name: switch
         optional: true
+      - id: 131
+        type: string
+        name: available
+        mapping:
+          - dps_val: auto
+            value: false
+          - value: true
   - entity: number
     category: config
     class: duration