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/amcrest/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, argcomplete
+, buildPythonPackage
+, fetchFromGitHub
+, mock
+, httpx
+, pytestCheckHook
+, pythonOlder
+, requests
+, responses
+, urllib3
+, typing-extensions
+}:
+
+buildPythonPackage rec {
+  pname = "amcrest";
+  version = "1.9.7";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "tchellomello";
+    repo = "python-amcrest";
+    rev = version;
+    sha256 = "sha256-An7MnGtZsmEZU/y6E0sivdexFD6HJRTB1juXqHfbDzE=";
+  };
+
+  propagatedBuildInputs = [
+    argcomplete
+    httpx
+    requests
+    urllib3
+    typing-extensions
+  ];
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+    responses
+  ];
+
+  pythonImportsCheck = [ "amcrest" ];
+
+  meta = with lib; {
+    description = "Python module for Amcrest and Dahua Cameras";
+    homepage = "https://github.com/tchellomello/python-amcrest";
+    license = with licenses; [ gpl2Only ];
+    maintainers = with maintainers; [ fab ];
+  };
+}