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/gnuradio-modules/nacl/default.nix

@@ -0,0 +1,46 @@
+{ lib
+, mkDerivation
+, fetchFromGitHub
+, cmake
+, pkg-config
+, cppunit
+, swig
+, boost
+, log4cpp
+, python
+, libsodium
+}:
+
+mkDerivation {
+  pname = "gr-nacl";
+  version = "2017-04-10";
+  src = fetchFromGitHub {
+    owner = "stwunsch";
+    repo = "gr-nacl";
+    rev = "15276bb0fcabf5fe4de4e58df3d579b5be0e9765";
+    sha256 = "018np0qlk61l7mlv3xxx5cj1rax8f1vqrsrch3higsl25yydbv7v";
+  };
+  disabledForGRafter = "3.8";
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    swig
+    python
+  ];
+
+  buildInputs = [
+    cppunit
+    log4cpp
+    boost
+    libsodium
+  ];
+
+  meta = with lib; {
+    description = "Gnuradio block for encryption";
+    homepage = "https://github.com/stwunsch/gr-nacl";
+    license = licenses.gpl3Plus;
+    platforms = platforms.linux ++ platforms.darwin;
+    maintainers = with maintainers; [ mog ];
+  };
+}