intel-npu-driver: apply suggestions

nixos/modules/hardware/cpu/intel-npu.nix

@@ -15,18 +15,17 @@ in
   };
 
   config = lib.mkIf cfg.enable {
-    assertions = [
-      {
-        assertion = config.hardware.graphics.enable;
-        message = "Intel NPU requires hardware.graphics.enable to be enabled";
-      }
-    ];
-
-    hardware.firmware = [ pkgs.intel-npu-driver.firmware ];
-    hardware.graphics.extraPackages = [ pkgs.intel-npu-driver ];
     environment.systemPackages = [
       pkgs.intel-npu-driver.validation
       pkgs.level-zero
     ];
+
+    hardware = {
+      firmware = [ pkgs.intel-npu-driver.firmware ];
+      graphics = {
+        enable = true;
+        extraPackages = [ pkgs.intel-npu-driver ];
+      };
+    };
   };
 }

pkgs/by-name/in/intel-npu-driver/package.nix

@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "intel";
     repo = "linux-npu-driver";
-    rev = "v${version}";
+    tag = "v${version}";
     fetchSubmodules = true;
     hash = "sha256-Lc+FsW0bM2cIqEXpCd9+nvFh70xCbY6aMSHZIjESxhs=";
   };