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>

pkgs/desktops/gnustep/default.nix

@@ -0,0 +1,23 @@
+{ newScope
+, llvmPackages
+}:
+
+let
+  callPackage = newScope self;
+
+  self = rec {
+    stdenv = llvmPackages.stdenv;
+
+    gsmakeDerivation = callPackage ./make/gsmakeDerivation.nix {};
+    gorm = callPackage ./gorm {};
+    projectcenter = callPackage ./projectcenter {};
+    system_preferences = callPackage ./systempreferences {};
+    libobjc = callPackage ./libobjc2 {};
+    make = callPackage ./make {};
+    back = callPackage ./back {};
+    base = callPackage ./base { };
+    gui = callPackage ./gui {};
+    gworkspace = callPackage ./gworkspace {};
+  };
+
+in self