KVM: s390: use created_vcpus in more places

[ Upstream commit 241e3ec0faf5ab1a0d9b1f6c43eefa919fb9c112 ]

commit a03825bb ("KVM: s390: use kvm->created_vcpus") introduced
kvm->created_vcpus to avoid races with the existing kvm->online_vcpus
scheme. One place was "forgotten" and one new place was "added".
Let's fix those.

Reported-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Fixes: 4e0b1ab7 ("KVM: s390: gs support for kvm guests")
Fixes: a03825bb ("KVM: s390: use kvm->created_vcpus")
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>