This adds:
* a new boolean 'secure' field to the type info returned by
qom-list-types, which will be set if the type provides a
security boundary
* a new boolean 'secure' parameter to the arguments of
qom-list-types, which can be used to filter types based
on their security status
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>