scsi: mpi3mr: Enable shared host tagset

Enable shared host tagset to make sure that total outstanding I/O count can
not exceed controller's can_queue setting.

Link: https://lore.kernel.org/r/20220628074848.5036-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: sreekanthbrcm

drivers/scsi/mpi3mr/mpi3mr_os.c

@@ -4321,6 +4321,8 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	shost->max_channel = 0;
 	shost->max_id = 0xFFFFFFFF;
 
+	shost->host_tagset = 1;
+
 	if (prot_mask >= 0)
 		scsi_host_set_prot(shost, prot_mask);
 	else {