nixos/ups: install udev rules for nut

This is necessary to allow the usbhid driver to successfully send
commands to the attached UPS.

It is possible to work around this by explicitly using setting the user
flag (e.g. `upsdrvctl -u root shutdown`), though it is much simpler to
install the udev rules rather than patch things further.

nixos/modules/services/monitoring/ups.nix

@@ -590,6 +590,7 @@ in
       "d /var/lib/nut 700"
     ];
 
+    services.udev.packages = [ pkgs.nut ];
 
 /*
     users.users.nut =

pkgs/applications/misc/nut/default.nix

@@ -85,6 +85,9 @@ stdenv.mkDerivation rec {
 
     # we don't need init.d scripts
     rm -r $out/share/solaris-init
+
+    # Suspicious/overly broad rule, remove it until we know better
+    rm $out/etc/udev/rules.d/52-nut-ipmipsu.rules
   '';
 
   meta = with lib; {