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/tools/security/xcat/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, fetchFromGitHub
+, python3
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "xcat";
+  version = "1.2.0";
+  disabled = python3.pythonOlder "3.7";
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "orf";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "01r5998gdvqjdrahpk0ci27lx9yghbddlanqcspr3qp5y5930i0s";
+  };
+
+  nativeBuildInputs = with python3.pkgs; [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    aiodns
+    aiohttp
+    appdirs
+    cchardet
+    click
+    colorama
+    prompt-toolkit
+    xpath-expressions
+  ];
+
+  # Project has no tests
+  doCheck = false;
+  pythonImportsCheck = [ "xcat" ];
+
+  meta = with lib; {
+    description = "XPath injection tool";
+    longDescription = ''
+      xcat is an advanced tool for exploiting XPath injection vulnerabilities,
+      featuring a comprehensive set of features to read the entire file being
+      queried as well as other files on the filesystem, environment variables
+      and directories.
+    '';
+    homepage = "https://github.com/orf/xcat";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}