RFR: 8283402: Update to gcc 11.2 on Linux [v2]

[Johan Vos]

On Tue, 12 Apr 2022 15:19:02 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> This patch updates the compiler to gcc 11.2 on Linux, in order to match JDK 17 -- see [JDK-8283057](https://bugs.openjdk.java.net/browse/JDK-8283057).
>> 
>> I ran a full build and test, including media and WebKit.
>
> Kevin Rushforth has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:
> 
>  - Merge branch 'master' into 8283402-gcc-11.2
>  - 8283402: Update to gcc 11.2 on Linux

This is working on our build/ci pipeline now, using a dedicated devkit that is very similar to the one produced by https://github.com/openjdk/jdk/tree/master/make/devkit .
I think this PR can now be reviewed/integrated.

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PR: https://git.openjdk.org/jfx/pull/761