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/parver/default.nix

@@ -0,0 +1,44 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, six
+, attrs
+, pytestCheckHook
+, hypothesis
+, pretend
+, arpeggio
+}:
+
+buildPythonPackage rec {
+  pname = "parver";
+  version = "0.3.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "c902e0653bcce927cc156a7fd9b3a51924cbce3bf3d0bfd49fc282bfd0c5dfd3";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "arpeggio ~= 1.7" "arpeggio"
+  '';
+
+  propagatedBuildInputs = [
+    six
+    attrs
+    arpeggio
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    hypothesis
+    pretend
+  ];
+
+  meta = with lib; {
+    description = "Allows parsing and manipulation of PEP 440 version numbers";
+    homepage = "https://github.com/RazerM/parver";
+    license = licenses.mit;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}