Use proper keystone path for probes

Using the direct / path for the keystone probes can lead to the
probes receiving an http 300. We want to have an http 200 so there
is no warning from the probes. Use the full v3 path so the probes
are stable

Change-Id: If8b45801bb053778bd2e1691ff8556aa73cb434d

keystone/templates/deployment-api.yaml

@@ -76,14 +76,14 @@ spec:
           readinessProbe:
             httpGet:
               scheme: HTTP
-              path: /
+              path: /v3/
               port: {{ $portInt }}
             initialDelaySeconds: 15
             periodSeconds: 10
           livenessProbe:
             httpGet:
               scheme: HTTP
-              path: /
+              path: /v3/
               port: {{ $portInt }}
             initialDelaySeconds: 50
             periodSeconds: 20