Introduce support for ephemeral users.

BUG: 24883058

Change-Id: I77d4757f87214166e7c41c7eb0d06b1cd5f06b20
diff --git a/main.cpp b/main.cpp
index 279405f..ea374c5 100644
--- a/main.cpp
+++ b/main.cpp
@@ -98,7 +98,7 @@
     }
 
     // Prepare owner storage
-    e4crypt_prepare_user_storage(nullptr, 0);
+    e4crypt_prepare_user_storage(nullptr, 0, false);
 
     cl = new CommandListener();
     ccl = new CryptCommandListener();