add more intel hardware drivers to galadriel

hosts/galadriel/hardware-configuration.nix

@@ -35,6 +35,13 @@
     extraPackages = with pkgs; [
       vpl-gpu-rt
 
+      #hardware decode and opencl 
+      vaapiIntel 
+      intel-media-driver # LIBVA_DRIVER_NAME=iHD (for HD Graphics starting Broadwell (2014) and newer)
+      intel-vaapi-driver # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
+      libvdpau-va-gl
+      intel-compute-runtime
+
     ];
   };