Add jenkins credentials for the same jenkins

For use in management jobs using API instead of internal objects.

Change-Id: Ie8b2bed045e658ee2fe649a3061d198641608068
diff --git a/jenkins/client/credential/jenkins.yml b/jenkins/client/credential/jenkins.yml
new file mode 100644
index 0000000..da373db
--- /dev/null
+++ b/jenkins/client/credential/jenkins.yml
@@ -0,0 +1,8 @@
+parameters:
+  jenkins:
+    client:
+      credential:
+        jenkins:
+          desc: Credentials to access this Jenkins instance
+          username: ${_param:jenkins_client_user}
+          password: ${_param:jenkins_client_password}