KVM: Shove vcpu stats_id init into kvm_vcpu_init()

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2119111



commit 58fc1166
Author: Oliver Upton <oupton@google.com>
Date:   Wed Jul 20 09:22:48 2022 +0000

    KVM: Shove vcpu stats_id init into kvm_vcpu_init()

    Initialize stats_id alongside other kvm_vcpu fields to make it more
    difficult to unintentionally access stats_id before it's set.

    No functional change intended.

Signed-off-by: Oliver Upton <oupton@google.com>
    Message-Id: <20220720092259.3491733-3-oliver.upton@linux.dev>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>