Add NoSchedule tolerations to rvmc pod

Add a toleration for the node-role.kubernetes.io/master:NoSchedule
taint. This taint is restored on this review
https://review.opendev.org/c/starlingx/ansible-playbooks/+/811978 to all
standard (non-AIO) master nodes to prevent user pods from being
scheduled and run. Therefore, these workloads will be scheduled and
run on a worker node.

This change will ensure that the rvmc  pod will continue run on the
master nodes (as designed).

Test plan:
PASS: Install rvmc pod with taint enabled on a STD system
and verify that the pod is running.
PASS: Describe rvmc pod and verify that toleration is added:
Tolerations:  node-role.kubernetes.io/master:NoSchedule op=Exists

Closes-bug: 1968183

Signed-off-by: Enzo Candotti <enzo.candotti@windriver.com>
Change-Id: I12ae4182967848d6acf9d7c0c99983b5be57f539

playbookconfig/src/playbooks/roles/install/templates/rvmc.yaml.j2

@@ -13,6 +13,10 @@ spec:
       hostNetwork: true
       nodeSelector:
         kubernetes.io/hostname: {{ host_name }}
+      tolerations:
+        - key: "node-role.kubernetes.io/master"
+          operator: "Exists"
+          effect: "NoSchedule"
       imagePullSecrets:
         - name: default-registry-key
       containers: