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/hcs_utils/default.nix

@@ -0,0 +1,31 @@
+{ lib, pythonOlder, buildPythonPackage, fetchPypi, six, glibcLocales, pytest }:
+
+buildPythonPackage rec {
+  pname = "hcs_utils";
+  version = "2.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "04xq69hrys8lf9kp8pva0c4aphjjfw412km7c32ydkwq0i59rhp2";
+  };
+
+  LC_ALL="en_US.UTF-8";
+
+  checkPhase = ''
+    # root does not has /root as home in sandbox
+    py.test -k 'not test_expand' hcs_utils/test
+  '';
+
+  buildInputs = [ six glibcLocales ];
+  checkInputs = [ pytest ];
+
+  disabled = pythonOlder "3.4";
+
+  meta = with lib; {
+    description = "Library collecting some useful snippets";
+    homepage    = "https://pypi.python.org/pypi/hcs_utils/1.3";
+    license     = licenses.isc;
+    maintainers = with maintainers; [ lovek323 ];
+    platforms   = platforms.unix;
+  };
+}