Create world-searchable /data/misc/user directory

installd will create a separate subdirectory for each user.

Change-Id: I95ec09169ea70f35443bbb3209237611e174ca29
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 0ef097c..55a516a 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -225,6 +225,7 @@
     mkdir /data/misc/wifi/sockets 0770 wifi wifi
     mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
     mkdir /data/misc/dhcp 0770 dhcp dhcp
+    mkdir /data/misc/user 0771 root root
     # give system access to wpa_supplicant.conf for backup and restore
     chmod 0660 /data/misc/wifi/wpa_supplicant.conf
     mkdir /data/local 0751 root root