Adding the wifi nic rt73 firmware into the nixos cds.

I'm not sure if I had to add the module file reference in "required", or all
modules are properly loaded.


svn path=/nixos/trunk/; revision=17800

modules/installer/cd-dvd/installation-cd-base.nix

@@ -72,6 +72,7 @@ in
       ./iso-image.nix
       ./memtest.nix
       ../../hardware/network/intel-3945abg.nix
+      ../../hardware/network/rt73.nix
     ];
 
   # ISO naming.
@@ -191,6 +192,9 @@ in
         else ""
       }
     '';
+  
+  # Have the redistributable firmware of rt73 wifi nics.
+  networking.enableRT73Firmware = true;
 
   # To speed up installation a little bit, include the complete stdenv
   # in the Nix store on the CD.