swap over kube-apiserver manifest to use livez and readyz

Change-Id: I90df19b58b0d4d3004dcc3ca3002b099845dfe3a

Author: Han Kang

cluster/gce/manifests/kube-apiserver.manifest

@@ -35,7 +35,7 @@
         "scheme": "HTTPS",
         "host": "127.0.0.1",
         "port": {{secure_port}},
-        "path": "/healthz?exclude=etcd&exclude=kms-provider-0&exclude=kms-provider-1"
+        "path": "/livez?exclude=etcd&exclude=kms-provider-0&exclude=kms-provider-1"
       },
       "initialDelaySeconds": {{liveness_probe_initial_delay}},
       "timeoutSeconds": 15
@@ -45,7 +45,7 @@
         "scheme": "HTTPS",
         "host": "127.0.0.1",
         "port": {{secure_port}},
-        "path": "/healthz"
+        "path": "/readyz"
       },
       "periodSeconds": 1,
       "timeoutSeconds": 15