RFR: 8296916: RISC-V: Move some small macro-assembler functions to header file [v2]

[Feilong Jiang]

On Mon, 14 Nov 2022 02:58:20 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Witnessed that there are some small macro-assembler functions located in file macroAssembler_riscv.cpp.
>> These are small functions which mostly contain only a single line of code. We should move them to the
>> corresponding header file so that they have a chance to be inlined.
>> 
>> Testing: Tier1 on linux-riscv64 HiFive unmatched board.
>
> Fei Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Review

Change looks good.

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Marked as reviewed by fjiang (Author).

PR: https://git.openjdk.org/jdk/pull/11130