RFR: 8264173: [s390] Improve Hardware Feature Detection And Reporting [v3]

[Lutz Schmidt]

> This enhancement is intended to improve the hardware feature detection and reporting, in particular for more recently introduced hardware. The enhancement is a prerequisite for possible future feature exploitation. 
> 
> Reviews are highly welcome and appreciated.

Lutz Schmidt has updated the pull request incrementally with one additional commit since the last revision:

  cleaned up some spaces

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3196/files
  - new: https://git.openjdk.java.net/jdk/pull/3196/files/d15d1157..f894238e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3196&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3196&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3196.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3196/head:pull/3196

PR: https://git.openjdk.java.net/jdk/pull/3196