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/libraries/openfx/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  pname = "openfx";
+  version = "1.4";
+
+  src = fetchFromGitHub {
+    owner = "ofxa";
+    repo = "openfx";
+    rev = "OFX_Release_1_4_TAG";
+    sha256 = "0k9ggzr6bisn77mipjfvawg3mv4bz50b63v8f7w1jhldi1sfy548";
+  };
+
+  outputs = [ "dev" "out" ];
+
+  enableParallelBuilding = true;
+
+  buildPhase = ''
+      mkdir $dev
+      mkdir $out
+      '';
+
+  installPhase = ''
+     mkdir -p $dev/include/OpenFX/
+     cp -r include/* $dev/include/OpenFX/
+  '';
+
+  meta = with lib; {
+    description = "Image processing plug-in standard";
+    homepage = "http://openeffects.org/";
+    license = licenses.bsd3;
+    platforms = platforms.all;
+    maintainers = [ maintainers.guibou ];
+  };
+}