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/fclones/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, libiconv
+, rustPlatform
+, AppKit
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "fclones";
+  version = "0.25.0";
+
+  src = fetchFromGitHub {
+    owner = "pkolaczk";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-7MNVLfBH6hWoNy+UQzK6gwZuPbBPMfG660my+E6FT5Q=";
+  };
+
+  cargoSha256 = "sha256-8Ur3KwGuIY8QAGNTcyTpFg2C1CBcIpZJp6EO9g8XuE8=";
+
+  buildInputs = lib.optionals stdenv.isDarwin [
+    AppKit
+    libiconv
+  ];
+
+  # device::test_physical_device_name test fails on Darwin
+  doCheck = !stdenv.isDarwin;
+
+  meta = with lib; {
+    description = "Efficient Duplicate File Finder and Remover";
+    homepage = "https://github.com/pkolaczk/fclones";
+    license = licenses.mit;
+    maintainers = with maintainers; [ cyounkins msfjarvis ];
+  };
+}