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/shippai/default.nix

@@ -0,0 +1,19 @@
+{ lib, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "shippai";
+  # Please make sure that vdirsyncer still builds if you update this package.
+  version = "0.3.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0r6iwvmay8ygn2m15pyjrk9am4mfpk7rkf0lcbcb15pnabixlyzj";
+  };
+
+  meta = with lib; {
+    description = "Use Rust failures as Python exceptions";
+    homepage = "https://github.com/untitaker/shippai";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gebner ];
+  };
+}