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/pq/default.nix

@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy27
+}:
+
+buildPythonPackage rec {
+  pname = "pq";
+  version = "1.9.0";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "c664ee3a9a25efcb583e3d1d797588fb7c2fb5096220689eec78a7946b01b5ff";
+  };
+
+  # tests require running postgresql cluster
+  doCheck = false;
+  pythonImportsCheck = [ "pq" ];
+
+  meta = with lib; {
+    description = "PQ is a transactional queue for PostgreSQL";
+    homepage = "https://github.com/malthe/pq/";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}