omni: sepolicy fix for vncflinger_exec

Change-Id: Iacf1a8419ecefb624255911ab680b3d3c9bb5fae
diff --git a/sepolicy/private/vncflinger.te b/sepolicy/private/vncflinger.te
index a6656b5..3579e7a 100644
--- a/sepolicy/private/vncflinger.te
+++ b/sepolicy/private/vncflinger.te
@@ -1,4 +1,4 @@
-type vncflinger_exec, exec_type, file_type;
+type vncflinger_exec, exec_type, file_type, system_file_type;
 type vncflinger, domain;
 typeattribute vncflinger coredomain;