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/odfpy/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, defusedxml
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "odfpy";
+  version = "1.4.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1v1qqk9p12qla85yscq2g413l3qasn6yr4ncyc934465b5p6lxnv";
+  };
+
+  propagatedBuildInputs = [ defusedxml ];
+
+  checkInputs = [ pytest ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = {
+    description = "Python API and tools to manipulate OpenDocument files";
+    homepage = "https://github.com/eea/odfpy";
+    license = lib.licenses.asl20;
+  };
+}