[crac] RFR: Fix CPUFeatures crash on new->old CPU [v3]

[Jan Kratochvil]

> - reproducible on i7-1165G7 "qemu-kvm -cpu host" for a checkpoint and "qemu-kvm -cpu SandyBridge" for its restore

Jan Kratochvil has updated the pull request incrementally with one additional commit since the last revision:

  Fix non-x86* compilation

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Changes:
  - all: https://git.openjdk.org/crac/pull/134/files
  - new: https://git.openjdk.org/crac/pull/134/files/f9470978..f66a71ae

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=134&range=02
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=134&range=01-02

  Stats: 14 lines in 9 files changed: 2 ins; 2 del; 10 mod
  Patch: https://git.openjdk.org/crac/pull/134.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/134/head:pull/134

PR: https://git.openjdk.org/crac/pull/134