Update config files (bnc#1163396).
    
    Disable CONFIG_RESET_ATTACK_MITIGATION as we don't have the userspace
    part and it causes problems during reboot. The config description
    states:
      This should only be enabled when userland is configured to clear the
      MemoryOverwriteRequest flag on clean shutdown after secrets have been
      evicted, since otherwise it will trigger even on clean reboots.