scsi: pm8001: Initialize devices in pm8001_alloc_dev()

scsi: pm8001: Initialize devices in pm8001_alloc_dev()

Devices can be allocated and freed at runtime. For example during a soft
reset all devices are freed and reallocated upon discovery.

Currently the driver fully initializes devices once in pm8001_alloc().
Allows initialization steps to happen during runtime, avoiding any
leftover states from the device being freed.

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Terrence Adams <tadamsjr@google.com>
Link: https://lore.kernel.org/r/20241021201828.1378858-1-tadamsjr@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>