Fairland RMIC06: deduplicate entities

Issue with config submitted in #1301

custom_components/tuya_local/devices/fairland_rmic06_heatpump.yaml

@@ -225,14 +225,14 @@ secondary_entities:
         name: sensor
         type: string
   - entity: binary_sensor
-    name: Current-limiting Charging Relay
+    name: Current limiting Charging Relay
     category: diagnostic
     dps:
       - id: 139
         type: boolean
         name: sensor
   - entity: binary_sensor
-    name: Current-limiting Charging Relay
+    name: Current limiting Charging Relay 2
     category: diagnostic
     dps:
       - id: 134