RFR: 8332899: RISC-V: add comment and make the code more readable (if possible) in MacroAssembler::movptr [v2]

[Hamlin Li]

On Fri, 31 May 2024 13:08:11 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   typo
>
> Seems fine to me!

Thanks @robehn @RealFYang for your reviewing!

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PR Comment: https://git.openjdk.org/jdk/pull/19431#issuecomment-2142452305