scsi: target: iscsi: fix typos and formatting in lio_target messages

Fix several minor issues in lio_target code and messages:

 - Correct typo "locatel" -> "locate" in error log.

 - Add missing space in pr_debug() message for better readability.

 - Fix comment typo: "contig_item" -> "config_item".

These changes improve code clarity and log readability.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Message-ID: <20250910190728.3783157-1-alok.a.tiwari@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>