RFR: 8334618: ubsan: support setting additional ubsan check options [v2]

[Erik Joelsson]

On Thu, 20 Jun 2024 12:48:40 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Sometimes it would be helpful to have configure-support for adding additional ubsan check options.
>> E.g. support new configure option '--with-additional-ubsan-checks=<check-settings>' .
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use UTIL_ARG_WITH

Logic looks ok, but I would prefer if you could break up the lines a bit.

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PR Review: https://git.openjdk.org/jdk/pull/19802#pullrequestreview-2130433438