Align naming in Descriptor cluster XML with the spec. (#24238)

* Align naming in Descriptor cluster XML with the spec.

* Regenerate generated files.
diff --git a/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter b/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
index 552e9cf..5640719 100644
--- a/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
+++ b/examples/chef/devices/rootnode_fan_7N2TobIlOX.matter
@@ -110,7 +110,7 @@
 
 server cluster Descriptor = 29 {
   struct DeviceTypeStruct {
-    devtype_id type = 0;
+    devtype_id deviceType = 0;
     int16u revision = 1;
   }