system bump to support basic Ceph classes

Change-Id: Ib4809cfbd3eaa07d92b887def4a168f1077403d2
diff --git a/classes/system b/classes/system
index 225ceae..eb3b56f 160000
--- a/classes/system
+++ b/classes/system
@@ -1 +1 @@
-Subproject commit 225ceaed28719c56f4da6767d6967dc00e7320b2
+Subproject commit eb3b56f5062ee7e8e0f4fea61878b27bd18f58dc