Adjust IProfiler locked entry assert

[cjjdespres]

The TR_IProfiler::releaseAllEntries() function is used with DEBUG to check that all entries in the IProfiler _bcHashTable are unlocked at JVM exit. This function now compensates for a known race condition in TR_IProfiler::findOrCreateEntry() by also reporting the number of locked entries it encounters that were likely not a result of that race condition, so it can be asserted instead that that total is zero.

Fixes: https://github.com/eclipse-openj9/openj9/issues/20344