RFR: 8302681: [IR Framework] Only allow cpuFeatures from a verified list [v6]

[Emanuel Peter]

On Thu, 23 Feb 2023 01:33:54 GMT, Pengfei Li <pli at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   more fixes after Tobias review
>
> Thank you for fixing this. LGTM

@pfustc @chhagedorn @TobiHartmann @vnkozlov thanks for the reviews and suggestions!

-------------

PR: https://git.openjdk.org/jdk/pull/12669