[PATCH] flow_classify: mark library as deprecated

[Konstantin Ananyev]

> 
> This library has no maintainer and, for now, nobody expressed interest
> in taking over.
> Mark this experimental library as deprecated and announce plan for
> removal in v23.11.
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---

 Acked-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>

> --
> 2.37.3