[jdk21u-dev] RFR: 8320892: AArch64: Restore FPU control state after JNI

[Boris Ulasevich]

Clean backport to avoid FPU control state corruption.

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

Commit messages:
 - Backport 50f31240555888018f0f496ab29c8a5932dce459

Changes: https://git.openjdk.org/jdk21u-dev/pull/1051/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1051&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8320892
  Stats: 28 lines in 5 files changed: 26 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1051.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1051/head:pull/1051

PR: https://git.openjdk.org/jdk21u-dev/pull/1051