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/pyxbe/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pyxbe";
+  version = "0.0.4";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "mborgerson";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-mHUmSSy/ygteJhRX6AbgZJ+c5MZMZcgNRoTOfxhV+XQ=";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  # Update location for run with pytest
+  preCheck = ''
+    substituteInPlace tests/test_load.py \
+      --replace "'xbefiles'" "'tests/xbefiles'"
+  '';
+
+  pythonImportsCheck = [
+    "xbe"
+  ];
+
+  meta = with lib; {
+    description = "Library to work with XBE files";
+    homepage = "https://github.com/mborgerson/pyxbe";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}