stable/jenkins: fix the default value for nodeUsageMode. (#3299)

* Fix the default value for nodeUsageMode.

* update version

stable/jenkins/Chart.yaml

@@ -1,6 +1,6 @@
 name: jenkins
 home: https://jenkins.io/
-version: 0.12.0
+version: 0.12.1
 appVersion: 2.73
 description: Open source continuous integration server. It supports multiple SCM tools
   including CVS, Subversion and Git. It can execute Apache Ant and Apache Maven-based

stable/jenkins/templates/config.yaml

@@ -43,6 +43,7 @@ data:
                   {{- $key }}={{ $value }}
                   {{- $_ := set $local "first" false }}
                 {{- end }}</nodeSelector>
+                <nodeUsageMode>NORMAL</nodeUsageMode>
               <volumes>
 {{- range $index, $volume := .Values.Agent.volumes }}
                 <org.csanchez.jenkins.plugins.kubernetes.volumes.{{ $volume.type }}Volume>