Increasing the wait timer for kube-api server to connect to contrail-…

…kube-manager

Kube-manager is taking 2 retry intervals to connect to kube-api server.
1 retry amounts for 60 seconds.
Thus, increaing the wait timer in kube-apiserver test case

Change-Id: I4f3a46ac3f65fc972f9d379a4308076658aebe82
Closes-bug: #1781165

serial_scripts/k8s_scripts/test_ingress.py

@@ -92,7 +92,7 @@ def test_ingress_with_kube_apiserver_restart(self):
                                     [self.inputs.k8s_master_ip],
                                     container = "kube-apiserver",
                                     verify_service = False)
-        time.sleep(20) # Kube-apiserver being non contrail service, skipping the verification and putting a sleep
+        time.sleep(120) # Kube-apiserver being non contrail service, skipping the verification and putting a sleep
         app = 'http_test'
         labels = {'app':app}
         namespace = self.setup_namespace(name='default')