The role.base.smm flag is always zero when setting up shadow EPT,
do not bother copying it over from vcpu->arch.root_mmu.
Reviewed-by: NDavid Matlack <dmatlack@google.com>
Reviewed-by: NSean Christopherson <seanjc@google.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>