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/x11/window-managers/windowlab.nix

@@ -0,0 +1,22 @@
+{lib, pkgs, config, ...}:
+
+let
+  cfg = config.services.xserver.windowManager.windowlab;
+in
+
+{
+  options = {
+    services.xserver.windowManager.windowlab.enable =
+      lib.mkEnableOption "windowlab";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.xserver.windowManager = {
+      session =
+        [{ name  = "windowlab";
+           start = "${pkgs.windowlab}/bin/windowlab";
+        }];
+    };
+    environment.systemPackages = [ pkgs.windowlab ];
+  };
+}