[riscv-port] RFR: 8278387: riscv: Implement UseHeavyMonitors consistently

[Fei Yang]

On Wed, 8 Dec 2021 09:42:40 GMT, Yadong Wang <yadongwang at openjdk.org> wrote:

> Make hotspot always use inflated monitors consistently if the flag UseHeavyMonitors is true. The riscv platform should follow https://bugs.openjdk.java.net/browse/JDK-8276901.
>
> Hotspot and jdk tier1 passed on the unmatched board. All jtreg tests were tested without new failures.

Looks good.

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Marked as reviewed by fyang (Lead).

PR: https://git.openjdk.java.net/riscv-port/pull/26