staging: unisys: visorhba: enhance visorhba to use channel_interrupt

visorhba uses kthread to obtain the responses from the IO
Service Partition periodically, on the other hand, visorbus
provides periodic work to serve such request, therefore,
kthread should be replaced by channel_interrupt.

Signed-off-by: Song Chen <chensong_2000@189.cn>
Link: https://lore.kernel.org/r/1609923863-6650-1-git-send-email-chensong_2000@189.cn


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>