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/credslayer/default.nix

@@ -0,0 +1,52 @@
+{ lib
+, fetchFromGitHub
+, python3
+, wireshark-cli
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "credslayer";
+  version = "0.1.2";
+
+  src = fetchFromGitHub {
+    owner = "ShellCode33";
+    repo = "CredSLayer";
+    rev = "v${version}";
+    sha256 = "1rbfy0h9c2gra1r2b39kngj3m7g177nmzzs5xy9np8lxixrh17pc";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [
+    pyshark
+  ];
+
+  checkInputs = with python3.pkgs; [
+    wireshark-cli
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [ "tests/tests.py" ];
+
+  disabledTests = [
+    # Requires a telnet setup
+    "test_telnet"
+    # stdout has all the correct data, but the underlying test code fails
+    # functionally everything seems to be intact
+    "http_get_auth"
+    "test_http_post_auth"
+    "test_ntlmssp"
+  ];
+
+  pythonImportsCheck = [ "credslayer" ];
+
+  postInstall = ''
+    wrapProgram $out/bin/credslayer \
+       --prefix PATH : "${lib.makeBinPath [ wireshark-cli ]}"
+  '';
+
+  meta = with lib; {
+    description = "Extract credentials and other useful info from network captures";
+    homepage = "https://github.com/ShellCode33/CredSLayer";
+    license = with licenses; [ gpl3Only ];
+    maintainers = with maintainers; [ fab ];
+  };
+}