update description about noop and none I/O schedulers

[Oreoxmt]

nvme io scheduler

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• [x] master (the latest development version)
• [x] v8.5 (TiDB 8.5 versions)
• [x] v8.4 (TiDB 8.4 versions)
• [x] v8.3 (TiDB 8.3 versions)
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• [x] v8.1 (TiDB 8.1 versions)
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• This PR is translated from: https://github.com/pingcap/docs-cn/pull/19073
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• [ ] Delete files
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[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-11-15 06:39:26.297529921 +0000 UTC m=+597528.488398917: :ballot_box_with_check: agreed by hfxsd.

[pepezzzz]

LGTM

[Oreoxmt]

/approve

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #19422.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #19423.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #19424.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.2: #19425.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.3: #19426.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.4: #19427.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #19428.