[PATCH] ethdev: fix ESP packet type description

[Morten Brørup]

> From: Alexander Kozyrev [mailto:akozyrev at nvidia.com]
> Sent: Wednesday, 25 October 2023 22.32
> 
> The correct protocol number for ESP (IP Encapsulating Security Payload)
> packet type is 50. 51 is IPSec AH (Authentication Header).
> 
> Fixes: 1e84afd3906b ("mbuf: add security crypto flags and fields")
> Signed-off-by: Alexander Kozyrev <akozyrev at nvidia.com>
> ---

Reviewed-by: Morten Brørup <mb at smartsharesystems.com>