[GR-65899] JFR substitutions for JDK 25+26.

[roberttoyonaga]

This PR adds some substitutions related to the the new JFR features recently integrated into OpenJDK:
JEP 520: JFR Method Timing & Tracing
JEP 509: JFR CPU-Time Profiling (Experimental)

Without them we get warnings like this:

[warn][jfr,system ] Exception occurred during execution of event jdk.MethodTiming(13364). jdk.jfr.internal.JVM.drainStaleMethodTracerIds()[J [symbol: Java_jdk_jfr_internal_JVM_drainStaleMethodTracerIds or Java_jdk_jfr_internal_JVM_drainStaleMethodTracerIds__]
[warn][jfr,setting] Exception occurred when setting value "false". jdk.jfr.internal.JVM.setCPUThrottle(DZ)V [symbol: Java_jdk_jfr_internal_JVM_setCPUThrottle or Java_jdk_jfr_internal_JVM_setCPUThrottle__DZ] ==> expected: <true> but was: <false>

[christianhaeubl]

Thanks - this PR will get integrated in the next few days.