scsi: qla4xxx: Use time conversion macros

Replace the raw use of 500 value in schedule_timeout() function with
msecs_to_jiffies() to ensure intended value across different kernel
configurations regardless of HZ value.

Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Link: https://patch.msgid.link/20251117200949.42557-1-i.shihao.999@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: i-shihao

drivers/scsi/qla4xxx/ql4_nx.c

@@ -1552,7 +1552,7 @@ static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
 			    (val == PHAN_INITIALIZE_ACK))
 				return 0;
 			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(500);
+			schedule_timeout(msecs_to_jiffies(500));
 
 		} while (--retries);