[PATCH v3 05/18] pxe: Add a userdata field to the context

[art]

OK nice

Reviewed and Tested on -master Mon 18 Oct 2021 04:40:29 PM CST
Reviewed-by: Artem Lapkin <email2tema at gmail.com>
Tested-by:  Artem Lapkin <email2tema at gmail.com>