RFR: 8302776: Fix typo CSR_INSTERT to CSR_INSTRET

[Fei Yang]

On Fri, 17 Feb 2023 15:06:59 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

> 8302776: Fix typo CSR_INSTERT to CSR_INSTRET

Looks good and trivial. I think the title should start with "RISC-V: " to make explicit that this is a riscv-specific issue.

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Marked as reviewed by fyang (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12616