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/plasma5-systemd-start.nix

@@ -0,0 +1,42 @@
+import ./make-test-python.nix ({ pkgs, ...} :
+
+{
+  name = "plasma5-systemd-start";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ oxalica ];
+  };
+
+  nodes.machine = { ... }:
+
+  {
+    imports = [ ./common/user-account.nix ];
+    services.xserver = {
+      enable = true;
+      displayManager.sddm.enable = true;
+      displayManager.defaultSession = "plasma";
+      desktopManager.plasma5.enable = true;
+      desktopManager.plasma5.runUsingSystemd = true;
+      displayManager.autoLogin = {
+        enable = true;
+        user = "alice";
+      };
+    };
+  };
+
+  testScript = { nodes, ... }: let
+    user = nodes.machine.config.users.users.alice;
+  in ''
+    with subtest("Wait for login"):
+        start_all()
+        machine.wait_for_file("${user.home}/.Xauthority")
+        machine.succeed("xauth merge ${user.home}/.Xauthority")
+
+    with subtest("Check plasmashell started"):
+        machine.wait_until_succeeds("pgrep plasmashell")
+        machine.wait_for_window("^Desktop ")
+
+    status, result = machine.systemctl('--no-pager show plasma-plasmashell.service', user='alice')
+    assert status == 0, 'Service not found'
+    assert 'ActiveState=active' in result.split('\n'), 'Systemd service not active'
+  '';
+})