Update policy for Android 4.2 / latest master.

Update policy for Android 4.2 / latest master.
Primarily this consists of changes around the bluetooth subsystem.
The zygote also needs further permissions to set up /storage/emulated.
adbd service now gets a socket under /dev/socket.
keystore uses the binder.

Change-Id: I8c5aeb8d100313c75169734a0fa614aa974b3bfc
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/seapp_contexts b/seapp_contexts
index f63da7c..258477a 100644
--- a/seapp_contexts
+++ b/seapp_contexts
@@ -33,6 +33,7 @@
 #
 isSystemServer=true domain=system
 user=system domain=system_app type=system_data_file
+user=bluetooth domain=bluetooth type=bluetooth_data_file
 user=nfc domain=nfc type=nfc_data_file
 user=radio domain=radio type=radio_data_file
 user=_app domain=untrusted_app type=app_data_file levelFromUid=true