RFR: JDK-8349077 : Rename GenerationCounters::update_all

[Suchismith Roy]

JBS Issue : [JDK-8349077](https://bugs.openjdk.org/browse/JDK-8349077)

we found the method names update_all of the class GenerationCounters and its subclasses are not so good. It is better to rename it to something like update_capacity (such as ZGenerationCounters::update_capacity).



Update_capacity exists, since update_all updates the size and used , I found update_memory_state as a better name for this method.

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Commit messages:
 - update_capacity exists

Changes: https://git.openjdk.org/jdk/pull/25833/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25833&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349077
  Stats: 45 lines in 15 files changed: 0 ins; 0 del; 45 mod
  Patch: https://git.openjdk.org/jdk/pull/25833.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25833/head:pull/25833

PR: https://git.openjdk.org/jdk/pull/25833