Adding entries for exit reasons 23 - 27:

  KVM_EXIT_EPR
  KVM_EXIT_SYSTEM_EVENT
  KVM_EXIT_S390_STSI
  KVM_EXIT_IOAPIC_EOI
  KVM_EXIT_HYPERV
Signed-off-by: NLadi Prosek <lprosek@redhat.com>
Reviewed-by: NCornelia Huck <cohuck@redhat.com>
Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>