Add opencl for intel to teapot

hosts/teapot.nix

@@ -1,4 +1,4 @@
-{ suites, ... }:
+{ suites, pkgs, ... }:
 {
   imports = suites.lap;
 
@@ -55,5 +55,10 @@
     };
   };
 
+  hardware.opengl.extraPackages = with pkgs; [
+    intel-ocl
+    intel-compute-runtime
+  ];
+
   networking.networkmanager.enable = true;
 }