scsi: vmw_pvscsi: Use true, false for adapter->use_msg

Fix the following coccicheck warning:

drivers/scsi/vmw_pvscsi.c:911:2-18: WARNING: Assignment of 0/1 to bool
variable

Link: https://lore.kernel.org/r/20200430121729.15064-1-yanaijie@huawei.comSigned-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/vmw_pvscsi.c

@@ -908,7 +908,7 @@ static int pvscsi_host_reset(struct scsi_cmnd *cmd)
 	use_msg = adapter->use_msg;
 
 	if (use_msg) {
-		adapter->use_msg = 0;
+		adapter->use_msg = false;
 		spin_unlock_irqrestore(&adapter->hw_lock, flags);
 
 		/*