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/audiotools/default.nix

@@ -0,0 +1,33 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, stdenv
+, AudioToolbox
+, AudioUnit
+, CoreServices
+}:
+
+buildPythonPackage rec {
+  pname = "audiotools";
+  version = "3.1.1";
+
+  buildInputs = lib.optionals stdenv.isDarwin [
+    AudioToolbox
+    AudioUnit
+    CoreServices
+  ];
+
+  src = fetchFromGitHub {
+    owner = "tuffy";
+    repo = "python-audio-tools";
+    rev = "v${version}";
+    sha256 = "sha256-y+EiK9BktyTWowOiJvOb2YjtbPa7R62Wb5zinkyt1OM=";
+  };
+
+  meta = with lib; {
+    description = "Utilities and Python modules for handling audio";
+    homepage = "http://audiotools.sourceforge.net/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ ];
+  };
+}