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-whatfeatures/default.nix

@@ -0,0 +1,27 @@
+{ lib, stdenv, fetchFromGitHub, rustPlatform, pkg-config, openssl, Security }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-whatfeatures";
+  version = "0.9.6";
+
+  src = fetchFromGitHub {
+    owner = "museun";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0vki37pxngg15za9c1z61dc6sqk0j59s0qhcf9hplnym4ib5kqx1";
+  };
+
+  cargoSha256 = "sha256-ZEkSj/JzXXTHjaxBVS5RDk/ECvOPPjzH4eS3CmlQA9I=";
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ openssl ]
+    ++ lib.optionals stdenv.isDarwin [ Security ];
+
+  meta = with lib; {
+    description = "A simple cargo plugin to get a list of features for a specific crate";
+    homepage = "https://github.com/museun/cargo-whatfeatures";
+    license = with licenses; [ mit asl20 ];
+    maintainers = with maintainers; [ ivan-babrou ];
+  };
+}