fix: use minimal image when deploying nfd chart (#774)

**What problem does this PR solve?**:
When deploying with the helm addon strategy i noticed that we did not
deploy the minimal image.

I'm going to follow this up with a PR that automates syncing the values
in the templates and `hack/addons/kustomize/**/helm-values.yaml`

**Which issue(s) this PR fixes**:
Fixes #

**How Has This Been Tested?**:
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Author: faiq

charts/cluster-api-runtime-extensions-nutanix/templates/nfd/manifests/helm-addon-installation.yaml

@@ -8,6 +8,8 @@ metadata:
   name: '{{ .Values.hooks.nfd.helmAddonStrategy.defaultValueTemplateConfigMap.name }}'
 data:
   values.yaml: |-
+    image:
+      tag: v0.15.2-minimal
     master:
       extraLabelNs:
         - nvidia.com