scsi: pm80xx: reduce indentation

Delete tab aligning a statement with the right hand side of a preceding
assignment rather than the left hand side.

Found with the help of Coccinelle.

[mkp: added space]

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>