citadeld: Add sepolicy to allow citadeld set property

Bug: 291641995
Change-Id: Ib5ccd619bd9361d2661c5f544be6264141f4b70e
diff --git a/citadel/property.te b/citadel/property.te
new file mode 100644
index 0000000..2e1c4ec
--- /dev/null
+++ b/citadel/property.te
@@ -0,0 +1 @@
+vendor_internal_prop(vendor_nos_citadel_version)