fix: add workaround for nvidia kernel module

Kernel parameter `initcall_blacklist=simpledrm_platform_driver_init`
is used to prevent the driver from hitting the renamed (and thus not linked) codepath.
Remove after NVIDIA/open-gpu-kernel-modules#692
and similar are merged and build in nixpkgs-unstable.
This also disables tty output and thus hides boot logs.

src/system/hardware/gpu/nvidia/system.nix

@@ -10,7 +10,15 @@ in
   };
   config = lib.mkIf cfg.enable {
     services.xserver.videoDrivers = [ "nvidia" ];
-    boot.kernelParams = [ "nvidia.NVreg_PreserveVideoMemoryAllocations=1" "nvidia_drm.fbdev=1" ];
+    boot.kernelParams = [
+      "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
+      "nvidia_drm.fbdev=1"
+
+      # TODO: remove after https://github.com/NVIDIA/open-gpu-kernel-modules/pull/692
+      # and similar are merged and build in nixpkgs-unstable.
+      # WARNING: this disables tty output and thus hides boot logs.
+      "initcall_blacklist=simpledrm_platform_driver_init"
+    ];
     hardware.nvidia = {
       modesetting.enable = true;
       powerManagement = {