scsi: csiostor: Assign boolean values to a bool variable

Fix the following coccicheck warnings:

./drivers/scsi/csiostor/csio_scsi.c:150:9-10: WARNING: return of 0/1 in
function 'csio_scsi_itnexus_loss_error' with return type bool.

Link: https://lore.kernel.org/r/[e-mail]
Reported-by: Abaci Robot <[e-mail]>
Signed-off-by: Jiapeng Chong <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/csiostor/csio_scsi.c

···
 	case FW_ERR_RDEV_LOST:
 	case FW_ERR_RDEV_LOGO:
 	case FW_ERR_RDEV_IMPL_LOGO:
-		return 1;
+		return true;
 	}
-	return 0;
+	return false;
 }
 
 /*