scsi: pm80xx: Improve debugging for aborted commands

scsi: pm80xx: Improve debugging for aborted commands

Improves the debugging capabilities of the driver by adding more context to
debug messages:

 1. Introduce a new function to show pending commands.

 2. Include the tag number in NCQ EH path debug messages.

 3. Add logging for ata_tag along with pm80xx tag to map I/Os aborted with
    ATA logs.

Signed-off-by: Vishakha Channapattan <vishakhavc@google.com>
Signed-off-by: Salomon Dushimirimana <salomondush@google.com>
Link: https://lore.kernel.org/r/20241126225546.975441-1-salomondush@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>