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/jsonrpc-async/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, aiohttp
+, buildPythonPackage
+, fetchFromGitHub
+, jsonrpc-base
+, pytest-aiohttp
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "jsonrpc-async";
+  version = "2.1.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "emlove";
+    repo = pname;
+    rev = version;
+    hash = "sha256-HhesXzxVjhWJkubiBi6sMoXi/zicqn99dqT5bilycS8=";
+  };
+
+  propagatedBuildInputs = [
+    aiohttp
+    jsonrpc-base
+  ];
+
+  checkInputs = [
+    pytest-aiohttp
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    "tests.py"
+  ];
+
+  pythonImportsCheck = [
+    "jsonrpc_async"
+  ];
+
+  meta = with lib; {
+    description = "A JSON-RPC client library for asyncio";
+    homepage = "https://github.com/emlove/jsonrpc-async";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}