fix kube-vip container securityContext (#11647)

roles/kubernetes/node/templates/manifests/kube-vip.manifest.j2

@@ -104,11 +104,16 @@ spec:
     imagePullPolicy: {{ k8s_image_pull_policy }}
     name: kube-vip
     resources: {}
+{% if kube_vip_lb_fwdmethod == "masquerade" %}
+    securityContext:
+      privileged: true
+{% else %}
     securityContext:
       capabilities:
         add:
         - NET_ADMIN
         - NET_RAW
+{% endif %}
     volumeMounts:
     - mountPath: /etc/kubernetes/admin.conf
       name: kubeconfig