nixos/throttled: load required kernel module

Changed files
+1
nixos
modules
services
hardware
+1
nixos/modules/services/hardware/throttled.nix
···
then pkgs.writeText "throttled.conf" cfg.extraConfig
else "${pkgs.throttled}/etc/throttled.conf";
+
hardware.cpu.x86.msr.enable = true;
# Kernel 5.9 spams warnings whenever userspace writes to CPU MSRs.
# See https://github.com/erpalma/throttled/issues/215
hardware.cpu.x86.msr.settings.allow-writes =