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/development/tools/rust/cargo-valgrind/default.nix

@@ -0,0 +1,43 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+, nix-update-script
+, makeWrapper
+, valgrind
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-valgrind";
+  version = "2.0.3";
+
+  src = fetchFromGitHub {
+    owner = "jfrimmel";
+    repo = "cargo-valgrind";
+    rev = version;
+    sha256 = "sha256-PEGDao010COqSJGha7GQvR7vNOV+C7faduijVNjB5DE=";
+  };
+
+  cargoSha256 = "sha256-00WUYrkKKJOEN9jXKQ3YraTq89U+3djdvLRuZSbeNHk=";
+
+  passthru = {
+    updateScript = nix-update-script {
+      attrPath = pname;
+    };
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postInstall = ''
+    wrapProgram $out/bin/cargo-valgrind --prefix PATH : ${lib.makeBinPath [ valgrind ]}
+  '';
+
+  # Disable check phase as there are failures (2 tests fail)
+  doCheck = false;
+
+  meta = with lib; {
+    description = ''Cargo subcommand "valgrind": runs valgrind and collects its output in a helpful manner'';
+    homepage = "https://github.com/jfrimmel/cargo-valgrind";
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ otavio ];
+  };
+}