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/mongomock/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pbr
+, sentinels
+, six
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "mongomock";
+  version = "4.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-sYMsN0jUdETBiGc3PlzqdUwub2RKDPv9Zn8Xj2i97Pw=";
+  };
+
+  nativeBuildInputs = [
+    pbr
+  ];
+
+  propagatedBuildInputs = [
+    sentinels
+    six
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "mongomock" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/mongomock/mongomock";
+    description = "Fake pymongo stub for testing simple MongoDB-dependent code";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ gador ];
+  };
+}