[PATCH v3 15/18] pxe: Return the file size from the getfile() function

[art]

OK will be usefull

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>