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/misc/websocat/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub, pkg-config, openssl, rustPlatform, libiconv
+, Security, makeWrapper, bash }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "websocat";
+  version = "1.9.0";
+
+  src = fetchFromGitHub {
+    owner = "vi";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-aQWLsdYHmju7tCJfg3a1aOlFYui7qsQ8vJfhyMawXWo=";
+  };
+
+  cargoSha256 = "sha256-b/B+K/LMP1XK1QEtFKY4nmy2fAqEmLTN+qL+XlrqA5w=";
+
+  nativeBuildInputs = [ pkg-config makeWrapper ];
+  buildInputs = [ openssl ]
+    ++ lib.optionals stdenv.isDarwin [ libiconv Security ];
+
+  buildFeatures = [ "ssl" ];
+
+  # Needed to get openssl-sys to use pkg-config.
+  OPENSSL_NO_VENDOR=1;
+
+  # The wrapping is required so that the "sh-c" option of websocat works even
+  # if sh is not in the PATH (as can happen, for instance, when websocat is
+  # started as a systemd service).
+  postInstall = ''
+    wrapProgram $out/bin/websocat \
+      --prefix PATH : ${lib.makeBinPath [ bash ]}
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/vi/websocat";
+    description = "Command-line client for WebSockets (like netcat/socat)";
+    changelog = "https://github.com/vi/websocat/releases/tag/v${version}";
+    license = licenses.mit;
+    maintainers = with maintainers; [ thoughtpolice Br1ght0ne ];
+  };
+}