Sepolicy for bufferhub hwservice

Bug: 118124442
Test: device can boot with android.frameworks.bufferhub@1.0-service
      running
Change-Id: I1d186d5350671b0d2dd4e831429b8fba828316e0
diff --git a/private/fwk_bufferhub.te b/private/fwk_bufferhub.te
new file mode 100644
index 0000000..fe84317
--- /dev/null
+++ b/private/fwk_bufferhub.te
@@ -0,0 +1,5 @@
+type fwk_bufferhub, domain, coredomain;
+type fwk_bufferhub_exec, system_file_type, exec_type, file_type;
+
+hal_server_domain(fwk_bufferhub, hal_bufferhub)
+init_daemon_domain(fwk_bufferhub)