uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/networking/mstpd.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.mstpd;
+in
+with lib;
+{
+  options.services.mstpd = {
+
+    enable = mkOption {
+      default = false;
+      type = types.bool;
+      description = ''
+        Whether to enable the multiple spanning tree protocol daemon.
+      '';
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ pkgs.mstpd ];
+
+    systemd.services.mstpd = {
+      description = "Multiple Spanning Tree Protocol Daemon";
+      wantedBy = [ "network.target" ];
+      unitConfig.ConditionCapability = "CAP_NET_ADMIN";
+      serviceConfig = {
+        Type = "forking";
+        ExecStart = "@${pkgs.mstpd}/bin/mstpd mstpd";
+        PIDFile = "/run/mstpd.pid";
+      };
+    };
+  };
+}