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/http-message-signatures/default.nix

@@ -0,0 +1,56 @@
+{ lib
+, buildPythonPackage
+, cryptography
+, fetchFromGitHub
+, http-sfv
+, pytestCheckHook
+, pythonOlder
+, setuptools-scm
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "http-message-signatures";
+  version = "0.4.3";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "pyauth";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-CMF9p913P04Hx/221ck1e0AoAsP7aXkX2UKp4S1nnU0=";
+  };
+
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    cryptography
+    http-sfv
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    requests
+  ];
+
+  pytestFlagsArray = [
+    "test/test.py"
+  ];
+
+  pythonImportsCheck = [
+    "http_message_signatures"
+  ];
+
+  meta = with lib; {
+    description = "Requests authentication module for HTTP Signature";
+    homepage = "https://github.com/pyauth/http-message-signatures";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ fab ];
+  };
+}