git: openjdk/jdk17u-dev: 8278241: Implement JVM SpinPause on linux-aarch64

[Paul Hohensee]

Changeset: 9378f263
Author:    Evgeny Astigeevich <eastig at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-01-26 15:07:28 +0000
URL:       https://git.openjdk.java.net/jdk17u-dev/commit/9378f2633b1a3c8baf60f300a592fa262d718d45

8278241: Implement JVM SpinPause on linux-aarch64

Backport-of: bcb79fd012c9c298e58c20c59e564e9d2c16b970

! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/cpu/aarch64/stubRoutines_aarch64.cpp
! src/hotspot/cpu/aarch64/stubRoutines_aarch64.hpp
! src/hotspot/os_cpu/linux_aarch64/os_linux_aarch64.cpp
+ test/hotspot/jtreg/runtime/Thread/TestSpinPause.java