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/morty.nix

@@ -0,0 +1,98 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.morty;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    services.morty = {
+
+      enable = mkEnableOption
+        "Morty proxy server. See https://github.com/asciimoo/morty";
+
+      ipv6 = mkOption {
+        type = types.bool;
+        default = true;
+        description = "Allow IPv6 HTTP requests?";
+      };
+
+      key = mkOption {
+        type = types.str;
+        default = "";
+        description = ''
+          HMAC url validation key (hexadecimal encoded).
+          Leave blank to disable. Without validation key, anyone can
+          submit proxy requests. Leave blank to disable.
+          Generate with <literal>printf %s somevalue | openssl dgst -sha1 -hmac somekey</literal>
+        '';
+      };
+
+      timeout = mkOption {
+        type = types.int;
+        default = 2;
+        description = "Request timeout in seconds.";
+      };
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.morty;
+        defaultText = literalExpression "pkgs.morty";
+        description = "morty package to use.";
+      };
+
+      port = mkOption {
+        type = types.int;
+        default = 3000;
+        description = "Listing port";
+      };
+
+      listenAddress = mkOption {
+        type = types.str;
+        default = "127.0.0.1";
+        description = "The address on which the service listens";
+      };
+
+    };
+
+  };
+
+  ###### Service definition
+
+  config = mkIf config.services.morty.enable {
+
+    users.users.morty =
+      { description = "Morty user";
+        createHome = true;
+        home = "/var/lib/morty";
+        isSystemUser = true;
+        group = "morty";
+      };
+    users.groups.morty = {};
+
+    systemd.services.morty =
+      {
+        description = "Morty sanitizing proxy server.";
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          User = "morty";
+          ExecStart = ''${cfg.package}/bin/morty              \
+            -listen ${cfg.listenAddress}:${toString cfg.port} \
+            ${optionalString cfg.ipv6 "-ipv6"}                \
+            ${optionalString (cfg.key != "") "-key " + cfg.key} \
+          '';
+        };
+      };
+    environment.systemPackages = [ cfg.package ];
+
+  };
+}