IH001 LED controller: do not use hex with mapping

Hex is for when the value needs to be decoded to binary.
When it is mapped to strings, the handling code gets confused

Issue #1629

custom_components/tuya_local/devices/ih001_led_controller.yaml

@@ -58,7 +58,7 @@ secondary_entities:
     category: config
     dps:
       - id: 25
-        type: hex
+        type: string
         name: option
         mapping:
           - dps_val: "000c0d0000000000000000c80000"