RFR: 8317354: Serial: Move DirtyCardToOopClosure to gc/serial folder

[Albert Mingkun Yang]

On Tue, 3 Oct 2023 08:12:42 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple relocating code to more appropriate folder. `ClearNoncleanCardWrapper` is moved to cpp as well.
> 
> One can sth like `git diff <commit-before-this-pr> <this-pr> --color-moved=dimmed_zebra` to better review this PR.

Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/16025#issuecomment-1746966388