custom-configuration.yaml uses incorrect reference for imagePullPolicy for brokerPods

[aaronezack]

Description
custom-configuration.yaml does not correctly reference the imagePullPolicy that is set in the values.yaml.
custom-configuration.yaml

Expected behavior
Require this line to correctly reference the pullPolicy set in a custom configuration values.yaml. It should be imagePullPolicy: {{ .Values.custom.configuration.brokerPod.image.pullPolicy }}