Fix mode on /data/security.

Change-Id: Id97d06a1c360c7871361db147f76b8a2eaceca42
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 72f351f..0784c63 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -243,7 +243,7 @@
     mkdir /data/drm 0770 drm drm
 
     # Separate location for storing security policy files on data
-    mkdir /data/security 0600 system system
+    mkdir /data/security 0700 system system
 
     # If there is no fs-post-data action in the init.<device>.rc file, you
     # must uncomment this line, otherwise encrypted filesystems