hg: jdk8u/jdk8u-dev/hotspot: 8271466: StackGap test fails on aarch64 due to "-m64"

[gnu.andrew at redhat.com]

Changeset: 2f7a380c9a0a
Author:    andrew
Date:      2021-08-02 07:22 +0100
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/2f7a380c9a0a

8271466: StackGap test fails on aarch64 due to "-m64"
Summary: Don't add -m64 when running on aarch64
Reviewed-by: andrew
Contributed-by: xiangyuan <xiangyuan at tencent.com>

! test/runtime/StackGap/testme.sh