Add kitchen tests to formula

Change-Id: Ibb11690fc631e59cf7e5eddd93a2950c5b240629
diff --git a/metadata.yml b/metadata.yml
index dacbd6f..72d1aea 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -1,3 +1,8 @@
 name: "maas"
 version: "0.1"
 source: "https://github.com/salt-formulas/salt-formula-maas"
+dependencies:
+- name: postgresql
+  source: "https://github.com/salt-formulas/salt-formula-postgresql"
+- name: rsyslog
+  source: "https://github.com/salt-formulas/salt-formula-rsyslog"