Add policy for property service.
New property_contexts file for property selabel backend.
New property.te file with property type declarations.
New property_service security class and set permission.
Allow rules for setting properties.
diff --git a/property.te b/property.te
new file mode 100644
index 0000000..b62004e
--- /dev/null
+++ b/property.te
@@ -0,0 +1,9 @@
+type default_prop, property_type;
+type shell_prop, property_type;
+type radio_prop, property_type;
+type system_prop, property_type;
+type vold_prop, property_type;
+type rild_prop, property_type;
+type ctl_default_prop, property_type;
+type ctl_dumpstate_prop, property_type;
+type ctl_rildaemon_prop, property_type;