TOMPD 63LW: make dp9 optional

Issue #532

custom_components/tuya_local/devices/tompd_63lw_breaker.yaml

@@ -23,6 +23,7 @@ primary_entity:
     - id: 9
       name: fault
       type: bitfield
+      optional: true
       mapping:
         - dps_val: 0
           value: OK