RFR: 8322735: C2: minor improvements of bubble sort used in SuperWord::packset_sort

[Denghui Dong]

On Fri, 5 Jan 2024 10:14:08 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>>> Please do the renaming, and then I can run testing and give you my approval.
>> 
>> Updated. Thanks.
>
> @D-D-H nice. Testing running.

@eme64 
Thank you!  Do I need a second review?

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PR Comment: https://git.openjdk.org/jdk/pull/17190#issuecomment-1880632132