linux_hardened: hacky build fix

Closes NixOS#350681

The netfilter patch doesn't apply on the hardened branch. It will
(hopefully) be upstream anyways soon, so let's just ignore it here to
unbreak hardened for everyone else.

pkgs/top-level/linux-kernels.nix

@@ -54,7 +54,7 @@ let
           broken = kernel.meta.broken;
         };
       };
-      kernelPatches = kernel.kernelPatches ++ [
+      kernelPatches = lib.filter ({ name ? null, ... }: name != "netfilter-typo-fix") kernel.kernelPatches ++ [
         kernelPatches.hardened.${kernel.meta.branch}
       ];
       isHardened = true;