RFR: 8322195: RISC-V: Minor improvement of MD5 instrinsic [v2]

[Hamlin Li]

On Mon, 18 Dec 2023 11:26:55 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

>> Hamlin Li has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - add space
>>  - Add some comment
>
> Marked as reviewed by luhenry (Committer).

Thanks @luhenry @RealFYang for your reviewing.

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PR Comment: https://git.openjdk.org/jdk/pull/17123#issuecomment-1862343341