RFR: 8263260: [s390] Support latest hardware (z14 and z15) [v2]

[Martin Doerr]

On Mon, 22 Mar 2021 14:55:01 GMT, Lutz Schmidt <lucy at openjdk.org> wrote:

>> 8263260: [s390] Support latest hardware (z14 and z15)
>
> Lutz Schmidt has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Changes as requested by TheRealMDoerr

Thanks for cleaning up! LGTM.

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Marked as reviewed by mdoerr (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2918