RFR: 8301743: RISC-V: Add InlineSkippedInstructionsCounter to post-call nops

[Xiaolin Zheng]

On Fri, 3 Feb 2023 12:27:13 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> RISC-V part of [JDK-8300002](https://bugs.openjdk.org/browse/JDK-8300002), one line only.
>> 
>> (Did not observe performance impact on JMH mentioned in JDK-8300002.)
>> 
>> Tested hotspot tier1 (fastdebug).
>
> Marked as reviewed by fyang (Reviewer).

Thanks for reviewing! @RealFYang @luhenry

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PR: https://git.openjdk.org/jdk/pull/12402