Add directory for forward locked apps in ASECs

Forward locked apps on internal storage will be stored in ASEC
containers using ext4. This way permissions can be preserved whether on
internal or external storage.

Change-Id: I942f8f0743c210330a11e2b1d0204df7a5ddb2ae

rootdir/init.rc

@@ -198,6 +198,7 @@ on post-fs-data
     mkdir /data/local/tmp 0771 shell shell
     mkdir /data/data 0771 system system
     mkdir /data/app-private 0771 system system
+    mkdir /data/app-asec 0700 root root
     mkdir /data/app 0771 system system
     mkdir /data/property 0700 root root
     mkdir /data/ssh 0750 root shell