hg: jdk/sandbox: 8213826: Disable ARMv6 memory barriers on ARMv5 processors

[chris.hegarty at oracle.com]

Changeset: d4f3e37d1fda
Author:    dholmes
Date:      2018-11-13 21:43 -0500
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/d4f3e37d1fda

8213826: Disable ARMv6 memory barriers on ARMv5 processors
Reviewed-by: dholmes, bulasevich
Contributed-by: Jakub Vanek <linuxtardis at gmail.com>

! src/hotspot/cpu/arm/assembler_arm_32.hpp
! src/hotspot/os_cpu/linux_arm/orderAccess_linux_arm.hpp