RFR: 8293840: RISC-V: Remove cbuf parameter from far_call/far_jump/trampoline_call

[Feilong Jiang]

On Fri, 16 Sep 2022 07:41:32 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Follow up [JDK-8287394](https://bugs.openjdk.org/browse/JDK-8287394), remove cbuf parameter from far_call/far_jump/trampoline in riscv.
>> 
>> 
>> Testing:
>> - Tier1 passed on unmatched board with release build
>
> Looks OK.

@RealFYang -- Thanks!

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PR: https://git.openjdk.org/jdk/pull/10277