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/tests/magnetico.nix

@@ -0,0 +1,41 @@
+import ./make-test-python.nix ({ pkgs, ...} :
+
+let
+  port = 8081;
+in
+{
+  name = "magnetico";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ rnhmjoj ];
+  };
+
+  nodes.machine = { ... }: {
+    imports = [ ../modules/profiles/minimal.nix ];
+
+    networking.firewall.allowedTCPPorts = [ 9000 ];
+
+    services.magnetico = {
+      enable = true;
+      crawler.port = 9000;
+      web.port = port;
+      web.credentials.user = "$2y$12$P88ZF6soFthiiAeXnz64aOWDsY3Dw7Yw8fZ6GtiqFNjknD70zDmNe";
+    };
+  };
+
+  testScript =
+    ''
+      start_all()
+      machine.wait_for_unit("magneticod")
+      machine.wait_for_unit("magneticow")
+      machine.wait_for_open_port(${toString port})
+      machine.succeed(
+          "${pkgs.curl}/bin/curl --fail "
+          + "-u user:password http://localhost:${toString port}"
+      )
+      machine.fail(
+          "${pkgs.curl}/bin/curl --fail "
+          + "-u user:wrongpwd http://localhost:${toString port}"
+      )
+      machine.shutdown()
+    '';
+})