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/python-ptrace/default.nix

@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "python-ptrace";
+  version = "0.9.8";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1e3bc6223f626aaacde8a7979732691c11b13012e702fee9ae16c87f71633eaa";
+  };
+
+  # requires distorm, which is optionally
+  doCheck = false;
+
+  propagatedBuildInputs = [ six ];
+
+  meta = with lib; {
+    description = "Python binding of ptrace library";
+    homepage = "https://github.com/vstinner/python-ptrace";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ mic92 ];
+  };
+}