Create bluetooth stack aid for sharing gid between all bluetooth processes

bug 6925422

Change-Id: I8d371f8307dd6bea3909a56643819413ea829a98
diff --git a/rootdir/init.rc b/rootdir/init.rc
index e9abadd..106cae5 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -195,7 +195,7 @@
     # create basic filesystem structure
     mkdir /data/misc 01771 system misc
     mkdir /data/misc/adb 02750 system shell
-    mkdir /data/misc/bluedroid 0770 bluetooth bluetooth
+    mkdir /data/misc/bluedroid 0770 bluetooth net_bt_stack
     mkdir /data/misc/bluetooth 0770 system system
     mkdir /data/misc/keystore 0700 keystore keystore
     mkdir /data/misc/keychain 0771 system system