git: openjdk/jdk17u-dev: 8277137: Set OnSpinWaitInst/OnSpinWaitInstCount defaults to "isb"/1 for Arm Neoverse N1

[Paul Hohensee]

Changeset: fe1d8e99
Author:    Evgeny Astigeevich <eastig at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2022-01-20 18:33:05 +0000
URL:       https://git.openjdk.java.net/jdk17u-dev/commit/fe1d8e99fac0b200de735963ac2a9c5459c6bcc4

8277137: Set OnSpinWaitInst/OnSpinWaitInstCount defaults to "isb"/1 for Arm Neoverse N1

Backport-of: 38345bd28db83371676f1685806ddc207a833879

! src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
+ test/hotspot/jtreg/compiler/onSpinWait/TestOnSpinWaitAArch64DefaultFlags.java