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/system/systembus-notify.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.systembus-notify;
+
+  inherit (lib) mkEnableOption mkIf;
+
+in
+{
+  options.services.systembus-notify = {
+    enable = mkEnableOption ''
+      System bus notification support
+
+      WARNING: enabling this option (while convenient) should *not* be done on a
+      machine where you do not trust the other users as it allows any other
+      local user to DoS your session by spamming notifications.
+    '';
+  };
+
+  config = mkIf cfg.enable {
+    systemd = {
+      packages = with pkgs; [ systembus-notify ];
+
+      user.services.systembus-notify.wantedBy = [ "graphical-session.target" ];
+    };
+  };
+}