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/pybase64/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pybase64";
+  version = "1.2.1";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "d2016a3a487d3d4501d8281f61ee54c25efd65e37a4c7dce8011e0de7183c956";
+  };
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "pybase64" ];
+
+  meta = with lib; {
+    description = "Fast Base64 encoding/decoding";
+    homepage = "https://github.com/mayeut/pybase64";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ ];
+  };
+}