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/rust-motd/default.nix

@@ -0,0 +1,35 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+, pkg-config
+, openssl
+, stdenv
+, Security
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "rust-motd";
+  version = "0.2.1";
+
+  src = fetchFromGitHub {
+    owner = "rust-motd";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-iuADR7m+wdmsQ897o4CQHqDv9PmYu/vJgO5C6Dluao4=";
+  };
+
+  cargoSha256 = "sha256-kdSMcADoTpMU4w2XSv0pPQZC155rrQACQ4XTVyj7eeA=";
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ openssl ] ++ lib.optional stdenv.isDarwin Security;
+
+  OPENSSL_NO_VENDOR = 1;
+
+  meta = with lib; {
+    description = "Beautiful, useful MOTD generation with zero runtime dependencies";
+    homepage = "https://github.com/rust-motd/rust-motd";
+    license = licenses.mit;
+    maintainers = with maintainers; [ figsoda ];
+  };
+}