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/compilers/rgbds/default.nix

@@ -0,0 +1,34 @@
+{lib, stdenv, fetchFromGitHub, bison, flex, pkg-config, libpng}:
+
+stdenv.mkDerivation rec {
+  pname = "rgbds";
+  version = "0.5.2";
+  src = fetchFromGitHub {
+    owner = "gbdev";
+    repo = "rgbds";
+    rev = "v${version}";
+    sha256 = "sha256-/GjxdB3Nt+XuKKQWjU12mS91U4FFoeP+9t0L+HsB/o8=";
+  };
+  nativeBuildInputs = [ bison flex pkg-config ];
+  buildInputs = [ libpng ];
+  NIX_CFLAGS_COMPILE = lib.optional stdenv.isDarwin "-fno-lto";
+  installFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  meta = with lib; {
+    homepage = "https://rgbds.gbdev.io/";
+    description = "A free assembler/linker package for the Game Boy and Game Boy Color";
+    license = licenses.mit;
+    longDescription =
+      ''RGBDS (Rednex Game Boy Development System) is a free assembler/linker package for the Game Boy and Game Boy Color. It consists of:
+
+          - rgbasm (assembler)
+          - rgblink (linker)
+          - rgbfix (checksum/header fixer)
+          - rgbgfx (PNG‐to‐Game Boy graphics converter)
+
+        This is a fork of the original RGBDS which aims to make the programs more like other UNIX tools.
+      '';
+    maintainers = with maintainers; [ matthewbauer NieDzejkob ];
+    platforms = platforms.all;
+  };
+}