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/applications/emulators/flycast/default.nix

@@ -0,0 +1,52 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, pkg-config
+, alsa-lib
+, libX11
+, libevdev
+, udev
+, libpulseaudio
+, SDL2
+, libzip
+, miniupnpc
+}:
+
+stdenv.mkDerivation rec {
+  pname = "flycast";
+  version = "1.3";
+
+  src = fetchFromGitHub {
+    owner = "flyinghead";
+    repo = "flycast";
+    rev = "v${version}";
+    sha256 = "sha256-FAHm8Fu/yv2rJvWCY+g50TYH4zOT6rO7F+jTL2T6EOU=";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    alsa-lib
+    libX11
+    libevdev
+    udev
+    libpulseaudio
+    SDL2
+    libzip
+    miniupnpc
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/flyinghead/flycast";
+    changelog = "https://github.com/flyinghead/flycast/releases/tag/v${version}";
+    description = "A multi-platform Sega Dreamcast, Naomi and Atomiswave emulator";
+    license = licenses.gpl2Only;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.ivar ];
+  };
+}