RFR: JDK-8300042: Improve CPU related JFR events descriptions [v3]

[Lutz Schmidt]

On Thu, 19 Jan 2023 09:06:53 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> There are a number of JFR events dealing with CPU related information. Those sometimes miss descriptions or have very limited descriptions, this can be improved.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Shorten descriptions

Looks good to me.

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

Marked as reviewed by lucy (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11969