Create credential-encrypted system dir for owner.

Other user directories are created correctly, but owner is still
special cased.

Bug: 22358539
Change-Id: I2bbd3023cdbcbb5315ebc32ba54dc3ddb9a280d6
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 3901f69..a160d32 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -395,6 +395,7 @@
     mkdir /data/system 0775 system system
     mkdir /data/system/heapdump 0700 system system
     mkdir /data/system_ce 0770 system system
+    mkdir /data/system_ce/0 0770 system system
 
     mkdir /data/user 0711 system system
     mkdir /data/user_de 0711 system system