Define sepolicy for ivn HAL.

Test: manually verify ivn HAL on gcar_emu.
Bug: 274139217
Change-Id: Ie12dccb723078d83b561c152cc4458e52c0f8090
diff --git a/public/hal_ivn.te b/public/hal_ivn.te
new file mode 100644
index 0000000..b10e9f2
--- /dev/null
+++ b/public/hal_ivn.te
@@ -0,0 +1,4 @@
+# HwBinder IPC from client to server, and callbacks
+binder_call(hal_ivn_client, hal_ivn_server)
+
+hal_attribute_service(hal_ivn, hal_ivn_service)
\ No newline at end of file