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/mistletoe/default.nix

@@ -0,0 +1,22 @@
+{ lib
+, isPy3k
+, fetchPypi
+, buildPythonPackage }:
+
+buildPythonPackage rec {
+  pname = "mistletoe";
+  version = "0.8.2";
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-ouNU5lPym8r1WZ2JSFEhGaxgN+nC+O53851VRQ59Gmw=";
+  };
+
+  meta = with lib; {
+    description = "A fast, extensible Markdown parser in pure Python.";
+    homepage = "https://github.com/miyuchina/mistletoe";
+    license = licenses.mit;
+    maintainers = with maintainers; [ eadwu ];
+  };
+}