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/audio/tambura/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchFromGitHub, faust2jaqt, faust2lv2 }:
+stdenv.mkDerivation rec {
+  pname = "Tambura";
+  version = "1.0";
+
+  src = fetchFromGitHub {
+    owner = "olilarkin";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1w80cmiyzca1wirf5gypg3hcix1ky777id8wnd3k92mn1jf4a24y";
+  };
+
+  buildInputs = [ faust2jaqt faust2lv2 ];
+
+  buildPhase = ''
+    faust2jaqt -vec -time -t 99999 ${pname}.dsp
+    faust2lv2 -vec -time -gui -t 99999 ${pname}.dsp
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp ${pname} $out/bin/
+    mkdir -p $out/lib/lv2
+    cp -r ${pname}.lv2/ $out/lib/lv2
+  '';
+
+  meta = with lib; {
+    description = "A FAUST patch inspired by the Indian Tambura/Tanpura - a four string drone instrument, known for its unique rich harmonic timbre";
+    homepage = "https://github.com/olilarkin/Tambura";
+    license = licenses.gpl2;
+    maintainers = [ maintainers.magnetophon ];
+  };
+}