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/absl-py/default.nix

@@ -0,0 +1,33 @@
+{ buildPythonPackage
+, lib
+, pythonOlder
+, fetchPypi
+, six
+, enum34
+}:
+
+buildPythonPackage rec {
+  pname = "absl-py";
+  version = "1.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ac511215c01ee9ae47b19716599e8ccfa746f2e18de72bdf641b79b22afa27ea";
+  };
+
+  propagatedBuildInputs = [
+    six
+  ] ++ lib.optionals (pythonOlder "3.4") [
+    enum34
+  ];
+
+  # checks use bazel; should be revisited
+  doCheck = false;
+
+  meta = {
+    description = "Abseil Python Common Libraries";
+    homepage = "https://github.com/abseil/abseil-py";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ danharaj ];
+  };
+}