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/pure-pcapy3/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pure-pcapy3";
+  version = "1.0.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-uZ5F8W1K1BDrXrvH1dOeNT1+2n6G8K1S5NxcRaez6pI=";
+  };
+
+  pythonImportsCheck = [
+    "pure_pcapy"
+  ];
+
+  meta = with lib; {
+    description = "Reimplementation of pcapy";
+    homepage = "https://github.com/rcloran/pure-pcapy-3";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ etu ];
+  };
+}