KVM: nVMX: Support several new fields in eVMCSv1

KVM: nVMX: Support several new fields in eVMCSv1

Enlightened VMCS v1 definition was updated with new fields, add
support for them for Hyper-V on KVM.

Note: SSP, CET and Guest LBR features are not supported by KVM yet
and 'struct vmcs12' has no corresponding fields.

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220830133737.1539624-11-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>