scsi: ch: Have midlayer retry ch_do_scsi() UAs

This has ch_do_scsi() have the SCSI midlayer retry UAs instead of driving
them itself.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20240123002220.129141-12-michael.christie@oracle.com


Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>