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/pytest-dotenv/default.nix

@@ -0,0 +1,23 @@
+{ lib, buildPythonPackage, fetchPypi, pytest, python-dotenv }:
+
+buildPythonPackage rec {
+  pname = "pytest-dotenv";
+  version = "0.5.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "LcbDrG2HZMccbSgE6QLQ/4EPoZaS6V/hOK78mxqnNzI=";
+  };
+
+  buildInputs = [ pytest ];
+  propagatedBuildInputs = [ python-dotenv ];
+
+  checkInputs = [ pytest ];
+
+  meta = with lib; {
+    description = "A pytest plugin that parses environment files before running tests";
+    homepage = "https://github.com/quiqua/pytest-dotenv";
+    license = licenses.mit;
+    maintainers = with maintainers; [ cleeyv ];
+  };
+}