fix calico tunl0 routes test (#9061)

Signed-off-by: cyclinder <qifeng.guo@daocloud.io>

tests/testcases/040_check-network-adv.yml

@@ -2,11 +2,11 @@
 - hosts: kube_node
   tasks:
     - name: Test tunl0 routes
-      shell: "set -o pipefail && ! /sbin/ip ro | grep '/26 via' | grep -v tunl0"
+      shell: "set -o pipefail && ! /sbin/ip ro | grep '/{{ calico_pool_blocksize}} | default(26) via' | grep -v tunl0"
       args:
         executable: /bin/bash
       when:
-        - (ipip|default(true) or cloud_provider is defined)
+        - (calico_ipip_mode is defined and calico_ipip_mode != 'Never' or cloud_provider is defined)
         - kube_network_plugin|default('calico') == 'calico'
 
 - hosts: k8s_cluster