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/tools/misc/ntfy-webpush/default.nix

@@ -0,0 +1,34 @@
+{ lib, python3Packages, fetchFromGitHub }:
+
+python3Packages.buildPythonPackage rec {
+  pname = "ntfy-webpush";
+  version = "0.1.3";
+
+  src = fetchFromGitHub {
+    owner = "dschep";
+    repo = "ntfy-webpush";
+    rev = "v${version}";
+    sha256 = "1dxlvq3glf8yjkn1hdk89rx1s4fi9ygg46yn866a9v7a5a83zx2n";
+  };
+
+  postPatch = ''
+    # break dependency loop
+    substituteInPlace setup.py \
+      --replace "'ntfy', " ""
+  '';
+
+  propagatedBuildInputs = with python3Packages; [
+    pywebpush
+    py-vapid
+  ];
+
+  # no tests, just a script
+  doCheck = false;
+
+  meta = with lib; {
+    description = "cloudbell webpush notification support for ntfy";
+    homepage = "https://dschep.github.io/ntfy-webpush/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}