Merge pull request #57902 from kawych/small_fix

Automatic merge from submit-queue (batch tested with PRs 57902, 57958). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix errors in Heapster deployment for google sink

**What this PR does / why we need it**:
Fixes a bug in Heapster deployment for google sink.

**Release note**:
```release-note
Fixes a bug in Heapster deployment for google sink.
```

cluster/addons/cluster-monitoring/google/heapster-controller.yaml

@@ -101,7 +101,7 @@ spec:
               memory: {{ nanny_memory }}
           volumeMounts:
           - name: heapster-config-volume
-            mountMath: /etc/config
+            mountPath: /etc/config
           env:
             - name: MY_POD_NAME
               valueFrom:
@@ -143,7 +143,7 @@ spec:
                   fieldPath: metadata.namespace
           volumeMounts:
           - name: eventer-config-volume
-            mountMath: /etc/config
+            mountPath: /etc/config
           command:
             - /pod_nanny
             - --config-dir=/etc/config
@@ -160,7 +160,6 @@ spec:
         - name: heapster-config-volume
           configMap:
             name: heapster-config
-      volumes:
         - name: eventer-config-volume
           configMap:
             name: eventer-config