RFR: 8290324: Move atomic operations outside of os_xxx.hpp [v3]

[Ioi Lam]

On Tue, 19 Jul 2022 05:25:29 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   @kimbarrett comments: cleaned up ARMAtomicFuncs; added "static inline". Also removed os:: from C_frame_offset on linux/arm.
>
> Still okay. But I would have resisted making non-move-related changes and leave that for future cleanups.

Thanks to @dholmes-ora and @kimbarrett for the review. Passed build tiers 1 and 5.

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PR: https://git.openjdk.org/jdk/pull/9501