Add sepolicy rules for Thread Network HAL

Bug: b/283905423
Test: Build and run the Thread Network stack in Cuttlefish.
Change-Id: I783022c66b80274069f8f3c292d84918f41f8221
diff --git a/public/hal_threadnetwork.te b/public/hal_threadnetwork.te
new file mode 100644
index 0000000..1f0745b
--- /dev/null
+++ b/public/hal_threadnetwork.te
@@ -0,0 +1,7 @@
+binder_call(hal_threadnetwork_client, hal_threadnetwork_server)
+binder_call(hal_threadnetwork_server, hal_threadnetwork_client)
+
+hal_attribute_service(hal_threadnetwork, hal_threadnetwork_service)
+
+binder_call(hal_threadnetwork_server, servicemanager)
+binder_call(hal_threadnetwork_client, servicemanager)