Add sql statement to filter devices according to last update time stamp in descending order

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/device/GenericDeviceDAOImpl.java

@@ -181,6 +181,8 @@ public class GenericDeviceDAOImpl extends AbstractDeviceDAOImpl {
                 sql += " GROUP BY e.ID ";
             }
             sql += ") ";
+            sql += " ORDER BY d1.LAST_UPDATED_TIMESTAMP DESC ";  // <-- New order clause
+
             sql += " LIMIT ? OFFSET ?";
 
             try (PreparedStatement stmt = conn.prepareStatement(sql)) {