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/open-music-kontrollers/generic.nix

@@ -0,0 +1,38 @@
+{ stdenv, lib, fetchurl, pkg-config, meson, ninja, libGLU, lv2, serd, sord, libX11, libXext, glew, lv2lint
+, pname, version, sha256, description
+, url ? "https://git.open-music-kontrollers.ch/lv2/${pname}.lv2/snapshot/${pname}.lv2-${version}.tar.xz"
+, additionalBuildInputs ? []
+, postPatch ? ""
+, ...
+}:
+
+stdenv.mkDerivation {
+  inherit pname;
+
+  inherit version;
+
+  inherit postPatch;
+
+  src = fetchurl {
+    url = url;
+    sha256 = sha256;
+  };
+  nativeBuildInputs = [ pkg-config meson ninja ];
+  buildInputs = [
+    lv2
+    sord
+    libX11
+    libXext
+    glew
+    lv2lint
+  ] ++ additionalBuildInputs;
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = description;
+    homepage = "https://open-music-kontrollers.ch/lv2/${pname}:";
+    license = licenses.artistic2;
+    maintainers = [ maintainers.magnetophon ];
+    platforms = platforms.all;
+  };
+}