Add SELinux rules for service_manager.

Add a service_mananger class with the verb add.
Add a type that groups the services for each of the
processes that is allowed to start services in service.te
and an attribute for all services controlled by the service
manager. Add the service_contexts file which maps service
name to target label.

Bug: 12909011
Change-Id: I017032a50bc90c57b536e80b972118016d340c7d
diff --git a/attributes b/attributes
index 261500f..64de61a 100644
--- a/attributes
+++ b/attributes
@@ -39,6 +39,9 @@
 # All types used for property service
 attribute property_type;
 
+# All types used for services managed by service_manager.
+attribute service_manager_type;
+
 # All domains that can override MLS restrictions.
 # i.e. processes that can read up and write down.
 attribute mlstrustedsubject;