KVM: VMX: Define VMCS-to-EVMCS conversion for the new fields

KVM: VMX: Define VMCS-to-EVMCS conversion for the new fields

Enlightened VMCS v1 definition was updated with new fields, support
them in KVM by defining VMCS-to-EVMCS conversion.

Note: SSP, CET and Guest LBR features are not supported by KVM yet and
the corresponding fields are not defined in 'enum vmcs_field', leave
them commented out for now.

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/20220830133737.1539624-10-vkuznets@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>