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/vncdo/default.nix

@@ -0,0 +1,38 @@
+{ lib, fetchFromGitHub
+, buildPythonPackage, isPy27
+, pillow
+, twisted
+, pexpect
+, nose
+, ptyprocess
+}:
+buildPythonPackage rec {
+  pname = "vncdo";
+  version = "0.12.0";
+
+  src = fetchFromGitHub {
+    owner = "sibson";
+    repo = "vncdotool";
+    rev = "v${version}";
+    sha256 = "0h3ccr8zi7xpgn6hz43x1045x5l4bhha7py8x00g8bv6gaqlbwxn";
+  };
+
+  propagatedBuildInputs = [
+    pillow
+    twisted
+    pexpect
+    nose
+    ptyprocess
+  ];
+
+  doCheck = !isPy27;
+
+  meta = with lib; {
+    homepage = "https://github.com/sibson/vncdotool";
+    description = "A command line VNC client and python library";
+    license = licenses.mit;
+    maintainers = with maintainers; [ elitak ];
+    platforms = with platforms; linux ++ darwin;
+  };
+
+}