Copy Glance's policy.json to /etc/glance

Change-Id: Ib83c9874b7d31e66206cf8907a12c65d9794a1a2
diff --git a/stack.sh b/stack.sh
index 8a443d1..48659e9 100755
--- a/stack.sh
+++ b/stack.sh
@@ -998,6 +998,9 @@
     iniset $GLANCE_API_PASTE_INI filter:authtoken admin_tenant_name $SERVICE_TENANT_NAME
     iniset $GLANCE_API_PASTE_INI filter:authtoken admin_user glance
     iniset $GLANCE_API_PASTE_INI filter:authtoken admin_password $SERVICE_PASSWORD
+
+    GLANCE_POLICY_JSON=$GLANCE_CONF_DIR/policy.json
+    cp $GLANCE_DIR/etc/policy.json $GLANCE_POLICY_JSON
 fi
 
 # Quantum