Bug fix: duplicate ID was used for the VLAN badge

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@3010 a333f486-631f-4898-b8df-5754b55c2be0

datamodels/2.x/itop-config-mgmt/datamodel.itop-config-mgmt.xml

@@ -8138,7 +8138,7 @@
           <rank>2</rank>
           <class>Subnet</class>
         </dashlet>
-        <dashlet id="21" xsi:type="DashletBadge">
+        <dashlet id="vlan" xsi:type="DashletBadge">
           <rank>2.1</rank>
           <class>VLAN</class>
         </dashlet>