RFR: 8296447: RISC-V: Make the operands order of vrsub_vx/vrsub_vi consistent with RVV 1.0 spec [v2]

[Dingli Zhang]

On Mon, 7 Nov 2022 07:37:06 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

>> Dingli Zhang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove duplicate macro definition
>
> I also verified it matches with https://github.com/riscv/riscv-opcodes/blob/master/rv_v

@luhenry @RealFYang Thanks for the review!

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PR: https://git.openjdk.org/jdk/pull/11009