[ICD] Add OperatingMode attribute to the LIT-ICD-app (project-chip#31997)

Author: mkardous-silabs

examples/lit-icd-app/lit-icd-common/lit-icd-server-app.matter

@@ -1764,6 +1764,7 @@ endpoint 0 {
     callback attribute clientsSupportedPerFabric;
     ram      attribute userActiveModeTriggerHint default = 0x110D;
     ram      attribute userActiveModeTriggerInstruction default = "Restart the application";
+    ram      attribute operatingMode default = 0;
     callback attribute generatedCommandList;
     callback attribute acceptedCommandList;
     callback attribute eventList;

examples/lit-icd-app/lit-icd-common/lit-icd-server-app.zap

@@ -1874,10 +1874,10 @@
               "side": "server",
               "type": "bitmap32",
               "included": 1,
-              "storageOption": "RAM",
+              "storageOption": "External",
               "singleton": 0,
               "bounded": 0,
-              "defaultValue": "0",
+              "defaultValue": null,
               "reportable": 1,
               "minInterval": 1,
               "maxInterval": 65534,
@@ -1890,10 +1890,10 @@
               "side": "server",
               "type": "int16u",
               "included": 1,
-              "storageOption": "RAM",
+              "storageOption": "External",
               "singleton": 0,
               "bounded": 0,
-              "defaultValue": "2",
+              "defaultValue": null,
               "reportable": 1,
               "minInterval": 0,
               "maxInterval": 65344,
@@ -3519,6 +3519,22 @@
               "maxInterval": 65534,
               "reportableChange": 0
             },
+            {
+              "name": "OperatingMode",
+              "code": 8,
+              "mfgCode": null,
+              "side": "server",
+              "type": "OperatingModeEnum",
+              "included": 1,
+              "storageOption": "RAM",
+              "singleton": 0,
+              "bounded": 0,
+              "defaultValue": "0",
+              "reportable": 1,
+              "minInterval": 1,
+              "maxInterval": 65534,
+              "reportableChange": 0
+            },
             {
               "name": "GeneratedCommandList",
               "code": 65528,

src/app/tests/suites/TestIcdManagementCluster.yaml

@@ -89,13 +89,25 @@ tests:
       response:
           value: beforeRebootICDCounter + 101
 
+    - label: "Verify the ICD is operating as a LIT ICD"
+      command: "readAttribute"
+      attribute: OperatingMode
+      response:
+          value: 1
+
     - label: "Unregister Client Registered During Commissioning"
       command: "UnregisterClient"
       arguments:
           values:
               - name: "CheckInNodeID"
                 value: commissionerNodeId
 
+    - label: "Verify the ICD is operating as a SIT ICD"
+      command: "readAttribute"
+      attribute: OperatingMode
+      response:
+          value: 0
+
     - label: "Read Feature Map"
       command: "readAttribute"
       attribute: "FeatureMap"