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/safe/default.nix

@@ -0,0 +1,24 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+}:
+
+buildPythonPackage rec {
+  version = "0.4";
+  pname = "Safe";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a2fdac9fe8a9dcf02b438201d6ce0b7be78f85dc6492d03edfb89be2adf489de";
+  };
+
+  buildInputs = [ nose ];
+
+  meta = with lib; {
+    homepage = "https://github.com/lepture/safe";
+    license = licenses.bsd3;
+    description = "Check password strength";
+  };
+
+}