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/dutree/default.nix

@@ -0,0 +1,27 @@
+{ fetchFromGitHub, lib, rustPlatform }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "dutree";
+  version = "0.2.18";
+
+  src = fetchFromGitHub {
+    owner = "nachoparker";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "17lm8jd07bi499mywg2iq669im34j4x4yhc8a3adxn12f8j0dfg7";
+    # test directory has files with unicode names which causes hash mismatches
+    # It is also not used by any tests or parts of build process
+    postFetch = ''
+      rm -r $out/test
+    '';
+  };
+
+  cargoSha256 = "0gg1w0xx36aswfm0y53nqwwz7zds25ysmklbrc8v2r91j74bhkzw";
+
+  meta = with lib; {
+    description = "A tool to analyze file system usage written in Rust";
+    homepage = "https://github.com/nachoparker/dutree";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ figsoda ];
+  };
+}