[TO REVIEW][nrf toup] Initialize routingRole to avoid warnings.

If the routingRole enum variable is not initilaized the compilator
returns warning which may be treated as error.

Signed-off-by: Arkadiusz Balys <arkadiusz.balys@nordicsemi.no>

Author: ArekBalysNordic

scripts/west/west-commands.yml

@@ -20,3 +20,8 @@ west-commands:
       - name: zap-append
         class: ZapAppend
         help: Append a new custom cluster to the ZCL database
+  - file: scripts/west/zap_update.py
+    commands:
+      - name: zap-update
+        class: ZapUpdate
+        help: Update and synchronize the ZAP and zcl.json files with the Matter SDK

scripts/west/zap_update.py

@@ -22,9 +22,13 @@ class ZapUpdate(WestCommand):
     def __init__(self):
         super().__init__(
             'zap-update',
-            'Update the ZAP file with the new clusters',
+            'Update and synchronize the ZAP and zcl.json files with the Matter SDK',
             dedent('''
-            Update the ZAP file with the new clusters'''))
+            Update and synchronize the ZAP and zcl.json files with the Matter SDK.
+
+            This command will update the ZAP file all changes from the Matter Data Model.
+            If the zcl.json file is provided, it will be synchronized with the base zcl.json file in the Matter SDK and new clusters will be added to it.
+            '''))
 
     def do_add_parser(self, parser_adder):
         parser = parser_adder.add_parser(self.name,

src/app/clusters/thread-network-diagnostics-server/thread-network-diagnostics-provider.cpp

@@ -106,8 +106,8 @@ CHIP_ERROR WriteThreadNetworkDiagnosticAttributeToTlv(AttributeId attributeId, a
 
     case Attributes::RoutingRole::Id: {
         using ThreadNetworkDiagnostics::RoutingRoleEnum;
-        RoutingRoleEnum routingRole;
-        otDeviceRole otRole = otThreadGetDeviceRole(otInst);
+        RoutingRoleEnum routingRole = RoutingRoleEnum::kUnspecified;
+        otDeviceRole otRole         = otThreadGetDeviceRole(otInst);
 
         if (otRole == OT_DEVICE_ROLE_DISABLED)
         {