RFR: 8275381 G1: refactor 2 constructors of G1CardSetConfiguration [v3]

[Thomas Schatzl]

On Fri, 22 Oct 2021 11:04:28 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> 2 constructors of G1CardSetConfiguration share some code, it's better to refacoring them to simplify the code.
>
> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Refine code further

Marked as reviewed by tschatzl (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/6033