Add shamu-specific service_manager access.

Commit: cd82557d4069c20bda8e18aa7f72fc0521a3ae32 removes the global
find and list service_manager permissions.  Add needed atfwd access.

Bug: 18106000
Change-Id: I1f80377dcf32577b5e90673f2cccf980551d3f68
diff --git a/sepolicy/atfwd.te b/sepolicy/atfwd.te
index a713530..0400a1a 100644
--- a/sepolicy/atfwd.te
+++ b/sepolicy/atfwd.te
@@ -13,3 +13,5 @@
 binder_use(atfwd);
 binder_call(atfwd, system_app);
 binder_call(atfwd, servicemanager);
+
+allow atfwd atfwd_service:service_manager find;