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/package-management/cargo-release/default.nix

@@ -0,0 +1,27 @@
+{ lib, stdenv, rustPlatform, fetchFromGitHub, libiconv, Security, openssl, pkg-config }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-release";
+  version = "0.21.0";
+
+  src = fetchFromGitHub {
+    owner = "crate-ci";
+    repo = "cargo-release";
+    rev = "v${version}";
+    sha256 = "sha256-QTHevbEifYsf/nCmkarbrHgijjlHragLieCpVZBfKGQ=";
+  };
+
+  cargoSha256 = "sha256-hEHEcB42mRn6pO5413wQbEWfJNBbiOSUuy9PGjP5EYw=";
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ openssl ]
+    ++ lib.optionals stdenv.isDarwin [ libiconv Security ];
+
+  meta = with lib; {
+    description = ''Cargo subcommand "release": everything about releasing a rust crate'';
+    homepage = "https://github.com/sunng87/cargo-release";
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ gerschtli ];
+  };
+}