scsi: mpi3mr: Delete a stray tab

This code is indented one more tab than it should be.

Link: https://lore.kernel.org/r/YtVCFshEJNC7ELid@kiliSigned-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>