scsi: ufs: ufs-mediatek: Remove unnecessary return code

Modify to remove unnecessary 'return 0' code.

Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Link: https://lore.kernel.org/r/20221121003338.11034-1-cw9316.lee@samsung.com


Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>