[crac] RFR: Fix up CPUFeatures on top of Merge jdk:jdk-25+26 [v4]

[Jan Kratochvil]

> This pull request contains: https://github.com/openjdk/crac/pull/248
> I think the CRaC project does not provide the pr/NUMBER branches for dependent patches.
> 
> This pull request enables the CPUFeatures again.

Jan Kratochvil has updated the pull request incrementally with two additional commits since the last revision:

 - whitespace fix
 - fix -XX:CPUFeatures parsing and its error message

-------------

Changes:
  - all: https://git.openjdk.org/crac/pull/250/files
  - new: https://git.openjdk.org/crac/pull/250/files/2f5f39eb..44aaef0e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=250&range=03
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=250&range=02-03

  Stats: 11 lines in 1 file changed: 7 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/crac/pull/250.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/250/head:pull/250

PR: https://git.openjdk.org/crac/pull/250