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/findimports/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, python
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "findimports";
+  version = "2.2.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "mgedmin";
+    repo = pname;
+    rev = version;
+    hash = "sha256-p13GVDXDOzOiTnRgtF7UxN1vwZRMa7wVEXJQrFQV7RU=";
+  };
+
+  pythonImportsCheck = [
+    "findimports"
+  ];
+
+  checkPhase = ''
+    runHook preCheck
+    ${python.interpreter} testsuite.py
+    runHook postCheck
+  '';
+
+  meta = with lib; {
+    description = "Module for the analysis of Python import statements";
+    homepage = "https://github.com/mgedmin/findimports";
+    license = with licenses; [ gpl2Only /* or */ gpl3Only ];
+    maintainers = with maintainers; [ fab ];
+  };
+}