Somgom single switch: use different option groups for initial state

To match other brands using the same dps layout, the initial state needs
to accept both "0", "1", "2" values and the common "off", "on", "memory"
values.

Issue #962

custom_components/tuya_local/devices/somgom_single_switch.yaml

@@ -2,6 +2,8 @@ name: Wall switch
 products:
   - id: nqodepctqralr6su
     name: Novadigital switch
+  - id: vxo9yezswiumvync
+    name: PST WT-E1
 primary_entity:
   entity: switch
   dps:
@@ -33,12 +35,23 @@ secondary_entities:
         name: option
         optional: true
         mapping:
-          - dps_val: "0"
-            value: "Off"
-          - dps_val: "1"
-            value: "On"
-          - dps_val: "2"
-            value: Last state
+          conditions:
+            - dps_val: ["0", "1", "2"]
+              mapping:
+                - dps_val: "0"
+                  value: "Off"
+                - dps_val: "1"
+                  value: "On"
+                - dps_val: "2"
+                  value: Last state
+            - dps_val: ["memory", "off", "on"]
+              mapping:
+                - dps_val: "off"
+                  value: "Off"
+                - dps_val: "on"
+                  value: "On"
+                - dps_val: memory
+                  value: Last state
   - entity: light
     name: Backlight
     category: config