Charts[Telemetry]: Parameterize the namespace

[leninmehedy]

          We will need to parameterize the namespace in the future, 'default' is temporary during development.

Originally posted by @jeromy-cannon in #298 (comment)

Nathan Klick:
some helm charts also will have a values file option of namespaceOverride: "" and use a namespace: {{ default .Release.Namespace .Values.namespaceOverride }} ```