init.rc: update the permission of /data/local.

Bug: 6131945
Change-Id: I3094a471dcfb02b786f47b6778c8fed3726325ec
diff --git a/rootdir/init.rc b/rootdir/init.rc
index cad4cd8..0510696 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -157,7 +157,7 @@
     # give system access to wpa_supplicant.conf for backup and restore
     mkdir /data/misc/wifi 0770 wifi wifi
     chmod 0660 /data/misc/wifi/wpa_supplicant.conf
-    mkdir /data/local 0771 shell shell
+    mkdir /data/local 0751 root root
     mkdir /data/local/tmp 0771 shell shell
     mkdir /data/data 0771 system system
     mkdir /data/app-private 0771 system system