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/desktops/gnome/at-spi2-core.nix

@@ -0,0 +1,57 @@
+# at-spi2-core daemon.
+
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+
+  meta = {
+    maintainers = teams.gnome.members;
+  };
+
+  ###### interface
+
+  # Added 2021-05-07
+  imports = [
+    (mkRenamedOptionModule
+      [ "services" "gnome3" "at-spi2-core" "enable" ]
+      [ "services" "gnome" "at-spi2-core" "enable" ]
+    )
+  ];
+
+  options = {
+
+    services.gnome.at-spi2-core = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to enable at-spi2-core, a service for the Assistive Technologies
+          available on the GNOME platform.
+
+          Enable this if you get the error or warning
+          <literal>The name org.a11y.Bus was not provided by any .service files</literal>.
+        '';
+      };
+
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkMerge [
+    (mkIf config.services.gnome.at-spi2-core.enable {
+      environment.systemPackages = [ pkgs.at-spi2-core ];
+      services.dbus.packages = [ pkgs.at-spi2-core ];
+      systemd.packages = [ pkgs.at-spi2-core ];
+    })
+
+    (mkIf (!config.services.gnome.at-spi2-core.enable) {
+      environment.variables.NO_AT_BRIDGE = "1";
+    })
+  ];
+}