RFR: 241263: JFR: Bump native events limit

[Stefan Karlsson]

Hi all,

Please review this patch to bump the limit of the amount of native events.

https://cr.openjdk.java.net/~stefank/8241263/webrev.01/
https://bugs.openjdk.java.net/browse/JDK-8241263

I'm hitting this limit when I'm adding new events. When this happens the 
events are silently dropped. I propose this short-term solution. Markus 
suggests that a more complete solution would be to extract the correct 
native event count when the JFR classes are generated.

Thanks,
StefanK