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/misc/rappel/default.nix

@@ -0,0 +1,38 @@
+{ fetchFromGitHub
+, libedit
+, makeWrapper
+, nasm
+, lib, stdenv
+}:
+
+stdenv.mkDerivation rec {
+  pname = "rappel";
+  version = "unstable-2019-09-09";
+
+  src = fetchFromGitHub {
+    owner = "yrp604";
+    repo = "rappel";
+    rev = "31a06762d34880ff2ed7176ca71bd8a6b91b10d5";
+    sha256 = "0wj3hypqfrjra8mwmn32hs5qs6ic81cq3gn1v0b2fba6vkqcsqfy";
+  };
+
+  buildInputs = [ libedit ];
+  nativeBuildInputs = [ makeWrapper ];
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm755 -t $out/bin bin/rappel
+    wrapProgram $out/bin/rappel --prefix PATH : "${nasm}/bin"
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/yrp604/rappel";
+    description = "A pretty janky assembly REPL";
+    license = licenses.bsdOriginal;
+    maintainers = [ maintainers.pamplemousse ];
+    platforms = platforms.linux;
+  };
+}