Fisher Summer: add compatible Kogan 2.6kW model

- add product details from PR #2888

Other changes proposed there should be either part of the previous 8.2kW
model, or custom changes that limit the config to only that model by removing
unused entities.

custom_components/tuya_local/devices/fisher_summer_air_conditioner.yaml

@@ -12,6 +12,9 @@ products:
   - id: 0v9shs7pwdjuwi9e
     manufacturer: Kogan
     model: 8.2kW split aircon
+  - id: 2mixrhxp38ehekxx
+    manufacturer: Kogan
+    model: 2.6kW split aircon
 entities:
   - entity: climate
     translation_only_key: aircon_extra