Add sepolicy for non-secure AuthGraph impl

Bug: 284470121
Bug: 291228560
Test: hal_implementation_test
Test: VtsAidlAuthGraphSessionTest
Change-Id: I85bf9e0656bab3c96765cc15a5a983aefb6af66d
diff --git a/public/hal_authgraph.te b/public/hal_authgraph.te
new file mode 100644
index 0000000..f053cb0
--- /dev/null
+++ b/public/hal_authgraph.te
@@ -0,0 +1,7 @@
+binder_call(hal_authgraph_client, hal_authgraph_server)
+
+hal_attribute_service(hal_authgraph, hal_authgraph_service)
+binder_call(hal_authgraph_server, servicemanager)
+
+allow hal_authgraph_server tee_device:chr_file rw_file_perms;
+allow hal_authgraph_server ion_device:chr_file r_file_perms;