Add mirantis users access to jenkins

Change-Id: I16602c08c7fa7dfc6700f1623f0a7d74194a88ed
diff --git a/jenkins/client/security/matrix.yml b/jenkins/client/security/matrix.yml
index b08aefd..a0ecc1e 100644
--- a/jenkins/client/security/matrix.yml
+++ b/jenkins/client/security/matrix.yml
@@ -5,9 +5,11 @@
       - ${_param:jenkins_client_user}
       - admins
     # Read only access
-    jenkins_security_matrix_read: []
+    jenkins_security_matrix_read:
+      - mirantis
     # Read + permissions to build jobs
-    jenkins_security_matrix_build: []
+    jenkins_security_matrix_build:
+      - mirantis
     # Build permissions + create/delete, whatever.
     jenkins_security_matrix_write:
       - ${_param:jenkins_client_user}