ide-cd: don't clear rq_flags after blk_get_request

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I65K8D
CVE: NA

--------------------------------

Prepare to add a flag while initializing request, there are no
functional changes.
Signed-off-by: NYu Kuai <yukuai3@huawei.com>
Reviewed-by: NHou Tao <houtao1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/ide/ide-cd_ioctl.c

@@ -298,7 +298,7 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi)
 
 	rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
 	ide_req(rq)->type = ATA_PRIV_MISC;
-	rq->rq_flags = RQF_QUIET;
+	rq->rq_flags |= RQF_QUIET;
 	blk_execute_rq(drive->queue, cd->disk, rq, 0);
 	ret = scsi_req(rq)->result ? -EIO : 0;
 	blk_put_request(rq);