scsi: ufs: mcq: Use ufshcd_mcq_req_to_hwq() to simplify updating hwq

Use ufshcd_mcq_req_to_hwq() to remove unnecessary variables and simplify.

Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Link: https://lore.kernel.org/r/20240105021041.20400-2-cw9316.lee@samsung.com


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