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/python-keystoneclient/default.nix

@@ -0,0 +1,57 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, keystoneauth1
+, openssl
+, oslo-config
+, oslo-serialization
+, pbr
+, pythonOlder
+, requests-mock
+, stestr
+, testresources
+, testscenarios
+}:
+
+buildPythonPackage rec {
+  pname = "python-keystoneclient";
+  version = "4.5.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.8";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-bX8FxpLn2yaSd4KEx3mubOqLIVmRS0QXpfoL/qHinNw=";
+  };
+
+  propagatedBuildInputs = [
+    keystoneauth1
+    oslo-config
+    oslo-serialization
+    pbr
+  ];
+
+  checkInputs = [
+    openssl
+    requests-mock
+    stestr
+    testresources
+    testscenarios
+  ];
+
+  checkPhase = ''
+    stestr run
+  '';
+
+  pythonImportsCheck = [
+    "keystoneclient"
+  ];
+
+  meta = with lib; {
+    description = "Client Library for OpenStack Identity";
+    homepage = "https://github.com/openstack/python-keystoneclient";
+    license = licenses.asl20;
+    maintainers = teams.openstack.members;
+  };
+}