scsi: sd: sd_zbc: Return early in sd_zbc_check_zoned_characteristics()

Return early in sd_zbc_check_zoned_characteristics() for host-aware
disks. This patch does not change any functionality but makes a later patch
easier to read.

Link: https://lore.kernel.org/r/20220421183023.3462291-6-bvanassche@acm.org


Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: extracted this change from a larger patch ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>