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/ruyaml/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, buildPythonPackage
+, distro
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+, setuptools-scm
+, setuptools-scm-git-archive
+}:
+
+buildPythonPackage rec {
+  pname = "ruyaml";
+  version = "0.91.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "pycontribs";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0gxvwry7n1gczxkjzyfrr3fammllkvnnamja4yln8xrg3n1h89al";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+    setuptools-scm-git-archive
+  ];
+
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  propagatedBuildInputs = [
+    distro
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "ruyaml"
+  ];
+
+  meta = with lib; {
+    description = "YAML 1.2 loader/dumper package for Python";
+    homepage = "https://ruyaml.readthedocs.io/";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}