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/development/python-modules/tokenlib/default.nix

@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, requests
+, webob
+}:
+
+buildPythonPackage rec {
+  pname = "tokenlib";
+  version = "0.3.1";
+
+  src = fetchFromGitHub {
+    owner = "mozilla-services";
+    repo = pname;
+    rev = "refs/tags/${version}";
+    sha256 = "0bq6dqyfwh29pg8ngmrm4mx4q27an9lsj0p9l79p9snn4g2rxzc8";
+  };
+
+  propagatedBuildInputs = [ requests webob ];
+
+  meta = with lib; {
+    homepage = "https://github.com/mozilla-services/tokenlib";
+    description = "Generic support library for signed-token-based auth schemes";
+    license = licenses.mpl20;
+  };
+
+}