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/i3wm.nix

@@ -0,0 +1,46 @@
+import ./make-test-python.nix ({ pkgs, ...} : {
+  name = "i3wm";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ aszlig ];
+  };
+
+  nodes.machine = { lib, ... }: {
+    imports = [ ./common/x11.nix ./common/user-account.nix ];
+    test-support.displayManager.auto.user = "alice";
+    services.xserver.displayManager.defaultSession = lib.mkForce "none+i3";
+    services.xserver.windowManager.i3.enable = true;
+  };
+
+  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 get first configuration window"):
+        machine.wait_for_window(r".*?first configuration.*?")
+        machine.sleep(2)
+        machine.screenshot("started")
+
+    with subtest("ensure we generate and save a config"):
+        # press return to indicate we want to gen a new config
+        machine.send_key("\n")
+        machine.sleep(2)
+        machine.screenshot("preconfig")
+        # press alt then return to indicate we want to use alt as our Mod key
+        machine.send_key("alt")
+        machine.send_key("\n")
+        machine.sleep(2)
+        # make sure the config file is created before we continue
+        machine.wait_for_file("/home/alice/.config/i3/config")
+        machine.screenshot("postconfig")
+        machine.sleep(2)
+
+    with subtest("ensure we can open a new terminal"):
+        machine.send_key("alt-ret")
+        machine.sleep(2)
+        machine.wait_for_window(r"alice.*?machine")
+        machine.sleep(2)
+        machine.screenshot("terminal")
+  '';
+})