KAFKA-16638 Align the naming convention for config and default variables in *Config classes

[EricLuGHub]

The PR mainly consists of renaming _PROP to _CONFIG and suffixing _DEFAULT in the config files.
The classes include:

• org.apache.kafka.raft.QuorumConfig
• org.apache.kafka.storage.internals.log.LogConfig
• org.apache.kafka.server.log.remote.storage.RemoteLogManagerConfig
• org.apache.kafka.storage.internals.log.CleanerConfig

Jira: https://issues.apache.org/jira/browse/KAFKA-16638

Note:

I had another PR linked to the same ticket. However, certain adjustments were made and I wanted to revert back certain changes. The changes were mainly that the public interface would remain intact (as discussed with @OmniaGM) and the alignment changes would only be within the config classes mentioned above.

Committer Checklist (excluded from commit message)

• Verify design and implementation
• Verify test coverage and CI build status
• Verify documentation (including upgrade notes)

[OmniaGM]

Thanks a lot for this cleanup. LGTM, I would just appreciate if we didn't merge this pr before #16116.

[chia7712]

@EricLuGHub could you please fix the conflicts?

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