scsi: be2iscsi: allocate enough memory in beiscsi_boot_get_sinfo()

We accidentally allocate sizeof(u32) instead of sizeof(struct
be_cmd_get_session_resp).

Fixes: 50a4b824be9e ("scsi: be2iscsi: Fix to make boot discovery non-blocking")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/be2iscsi/be_mgmt.c

@@ -1083,7 +1083,7 @@ unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
 	nonemb_cmd = &phba->boot_struct.nonemb_cmd;
 	nonemb_cmd->size = sizeof(*resp);
 	nonemb_cmd->va = pci_alloc_consistent(phba->ctrl.pdev,
-					      sizeof(nonemb_cmd->size),
+					      nonemb_cmd->size,
 					      &nonemb_cmd->dma);
 	if (!nonemb_cmd->va) {
 		mutex_unlock(&ctrl->mbox_lock);