Add linux.system.directory state

Change-Id: Ida91f545cc705457d1bc567fbee483e14a202a3a
diff --git a/tests/pillar/system.sls b/tests/pillar/system.sls
index 411323c..cba1aea 100644
--- a/tests/pillar/system.sls
+++ b/tests/pillar/system.sls
@@ -7,6 +7,9 @@
     environment: prd
     hostname: system.pillar.local
     purge_repos: true
+    directory:
+      /tmp/test:
+        makedirs: true
     apparmor:
       enabled: false
     haveged: