The Kibana username and password needs to match the Elasticsearch
username and password, as Kibana requires an authorized elasticsearch
user to make queries against the elasticsearch backend to display
its dashboards and set up the initial .kibana index. This changes
the apache proxy running in front of kibana to consume the
elasticsearch username and password via the elasticsearch secret in
the chart to ensure kibana has proper access
Change-Id: Ife3fd916e8d9a3f8877d01a9048a892f92e412d8
a31afb2f85