Keep firewall.user during sysupgrades

SVN-Revision: 26241

package/firewall/Makefile

@@ -51,6 +51,8 @@ define Package/firewall/install
 	$(INSTALL_DATA) ./files/reflection.hotplug $(1)/etc/hotplug.d/firewall/10-nat-reflection
 	$(INSTALL_DIR) $(1)/etc
 	$(INSTALL_DATA) ./files/firewall.user $(1)/etc
+	$(INSTALL_DIR) $(1)/lib/upgrade/keep.d
+	$(INSTALL_DATA) ./files/firewall.upgrade $(1)/lib/upgrade/keep.d/firewall
 endef
 
 $(eval $(call BuildPackage,firewall))

package/firewall/files/firewall.upgrade

@@ -0,0 +1 @@
+/etc/firewall.user