scsi: pm8001: Introduce pm8001_init_tasklet()

Factor out the identical code for initializing tasklets in
pm8001_pci_alloc() and pm8001_pci_resume() and instead use the new function
pm8001_init_tasklet().

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230911232745.325149-4-dlemoal@kernel.org


Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>