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/west/default.nix

@@ -0,0 +1,62 @@
+{ lib
+, buildPythonPackage
+, colorama
+, configobj
+, fetchPypi
+, packaging
+, pykwalify
+, pythonOlder
+, pyyaml
+}:
+
+buildPythonPackage rec {
+  pname = "west";
+  version = "0.13.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-B6B7shZ8FM5pyXzXknJv9mwr+ERq4kiEzRf5jLTCicM=";
+  };
+
+  propagatedBuildInputs = [
+    colorama
+    configobj
+    packaging
+    pyyaml
+    pykwalify
+  ];
+
+  # pypi package does not include tests (and for good reason):
+  # tests run under 'tox' and have west try to git clone repos (not sandboxable)
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "west"
+  ];
+
+  meta = with lib; {
+    description = "Zephyr RTOS meta tool";
+    longDescription = ''
+      West lets you manage multiple Git repositories under a single directory using a single file,
+      called the west manifest file, or manifest for short.
+
+      The manifest file is named west.yml.
+      You use west init to set up this directory,
+      then west update to fetch and/or update the repositories
+      named in the manifest.
+
+      By default, west uses upstream Zephyr’s manifest file
+      (https://github.com/zephyrproject-rtos/zephyr/blob/master/west.yml),
+      but west doesn’t care if the manifest repository is a Zephyr tree or not.
+
+      For more details, see Multiple Repository Management in the west documentation
+      (https://docs.zephyrproject.org/latest/guides/west/repo-tool.html).
+    '';
+    homepage = "https://github.com/zephyrproject-rtos/west";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ siriobalmelli ];
+  };
+}