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/video/kodi/addons/signals/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildKodiAddon, fetchzip, addonUpdateScript }:
+buildKodiAddon rec {
+  pname = "signals";
+  namespace = "script.module.addon.signals";
+  version = "0.0.6+matrix.1";
+
+  src = fetchzip {
+    url = "https://mirrors.kodi.tv/addons/matrix/${namespace}/${namespace}-${version}.zip";
+    sha256 = "1qcjbakch8hvx02wc01zv014nmzgn6ahc4n2bj5mzr114ppd3hjs";
+  };
+
+  passthru= {
+    pythonPath = "lib";
+    updateScript = addonUpdateScript {
+      attrPath = "kodi.packages.signals";
+    };
+  };
+
+  meta = with lib; {
+    homepage = "https://github.com/ruuk/script.module.addon.signals";
+    description = "Provides signal/slot mechanism for inter-addon communication";
+    license = licenses.lgpl21Only;
+    maintainers = teams.kodi.members;
+  };
+}