Install the LinuxKPI task structure when we create the interrupt handler

[• hselasky]

Summary

Install the LinuxKPI task structure when we create the interrupt handler, instead of doing this at the first interrupt, because then we cannot sleep allocating memory.

MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking

[• hselasky]

Bump FreeBSD version.

[• hselasky]

Also cover the software interrupt threads.