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/configshell/default.nix

@@ -0,0 +1,44 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, pyparsing
+, six
+, urwid
+}:
+
+buildPythonPackage rec {
+  pname = "configshell";
+  version = "1.1.29";
+
+  src = fetchFromGitHub {
+    owner = "open-iscsi";
+    repo = "${pname}-fb";
+    rev = "v${version}";
+    sha256 = "0mjj3c9335sph8rhwww7j4zvhyk896fbmx887vibm89w3jpvjjr9";
+  };
+
+  propagatedBuildInputs = [
+    pyparsing
+    six
+    urwid
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "pyparsing >=2.0.2,<3.0" "pyparsing >=2.0.2"
+  '';
+
+  # Module has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "configshell"
+  ];
+
+  meta = with lib; {
+    description = "Python library for building configuration shells";
+    homepage = "https://github.com/open-iscsi/configshell-fb";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ ];
+  };
+}