sif: eq: Add timeout to the threaded interrupt handler

sif: eq: Add timeout to the threaded interrupt handler

This commit implements a timeout that prevents soft lockup issues when
the threaded interrupt function (sif_intr_worker) keeps processing
events for a long period. If the timeout is reached, the threaded
handler returns IRQ_HANDLED even if there are more events to be
processed. In such a case, the coalescing mechanism will generate
an IRQ for the last event.

Orabug: 24839976

Signed-off-by: Francisco Triviño <francisco.trivino@oracle.com>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>