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-freezegun/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, freezegun
+, pytest
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-freezegun";
+  version = "0.4.2";
+
+  src = fetchFromGitHub {
+    owner = "ktosiek";
+    repo = "pytest-freezegun";
+    rev = version;
+    sha256 = "10c4pbh03b4s1q8cjd75lr0fvyf9id0zmdk29566qqsmaz28npas";
+  };
+
+  buildInputs = [ pytest ];
+
+  propagatedBuildInputs = [
+    freezegun
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "Wrap tests with fixtures in freeze_time";
+    homepage = "https://github.com/ktosiek/pytest-freezegun";
+    license = licenses.mit;
+    maintainers = [ maintainers.mic92 ];
+  };
+}