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/msal-extensions/default.nix

@@ -0,0 +1,45 @@
+{ buildPythonPackage
+, fetchPypi
+, lib
+, isPy27
+
+# pythonPackages
+, msal
+, pathlib2
+, portalocker
+}:
+
+buildPythonPackage rec {
+  pname = "msal-extensions";
+  version = "1.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-xnarpWsMzjeD3htcXs/oKNuZgWeHUSbKS0fcZDZFE1Q=";
+  };
+
+  propagatedBuildInputs = [
+    msal
+    portalocker
+  ] ++ lib.optionals isPy27 [
+    pathlib2
+  ];
+
+  # upstream doesn't update this requirement probably because they use pip
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "portalocker~=1.0" "portalocker"
+  '';
+
+  # No tests found
+  doCheck = false;
+
+  meta = with lib; {
+    description = "The Microsoft Authentication Library Extensions (MSAL-Extensions) for Python";
+    homepage = "https://github.com/AzureAD/microsoft-authentication-extensions-for-python";
+    license = licenses.mit;
+    maintainers = with maintainers; [
+      kamadorueda
+    ];
+  };
+}