RFR: 8294100: RISC-V: Move rt_call and xxx_move from SharedRuntime to MacroAssembler

[Feilong Jiang]

On Wed, 21 Sep 2022 11:51:53 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Looks fine, assuming the actual moves were straight cut-and-paste.

@shipilev Thank you! Yes, it's almost straight cut-and-paste but also removes the `masm` in the methods.

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PR: https://git.openjdk.org/jdk/pull/10375