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/wmderland.nix

@@ -0,0 +1,54 @@
+import ./make-test-python.nix ({ pkgs, ...} : {
+  name = "wmderland";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ takagiy ];
+  };
+
+  nodes.machine = { lib, ... }: {
+    imports = [ ./common/x11.nix ./common/user-account.nix ];
+    test-support.displayManager.auto.user = "alice";
+    services.xserver.displayManager.defaultSession = lib.mkForce "none+wmderland";
+    services.xserver.windowManager.wmderland.enable = true;
+
+    systemd.services.setupWmderlandConfig = {
+      wantedBy = [ "multi-user.target" ];
+      before = [ "multi-user.target" ];
+      environment = {
+        HOME = "/home/alice";
+      };
+      unitConfig = {
+        type = "oneshot";
+        RemainAfterExit = true;
+        user = "alice";
+      };
+      script = let
+        config = pkgs.writeText "config" ''
+             set $Mod = Mod1
+             bindsym $Mod+Return exec ${pkgs.xterm}/bin/xterm -cm -pc
+        '';
+      in ''
+        mkdir -p $HOME/.config/wmderland
+        cp ${config} $HOME/.config/wmderland/config
+      '';
+    };
+  };
+
+  testScript = { ... }: ''
+    with subtest("ensure x starts"):
+        machine.wait_for_x()
+        machine.wait_for_file("/home/alice/.Xauthority")
+        machine.succeed("xauth merge ~alice/.Xauthority")
+
+    with subtest("ensure we can open a new terminal"):
+        machine.send_key("alt-ret")
+        machine.wait_until_succeeds("pgrep xterm")
+        machine.wait_for_window(r"alice.*?machine")
+        machine.screenshot("terminal")
+
+    with subtest("ensure we can communicate through ipc with wmderlandc"):
+        # Kills the previously open xterm
+        machine.succeed("pgrep xterm")
+        machine.execute("DISPLAY=:0 wmderlandc kill")
+        machine.fail("pgrep xterm")
+  '';
+})