[aarch64-port-dev ] hg: aarch64-port/jdk8/hotspot: Fix thinko in Atomic::xchg_ptr.

[aph at redhat.com]

Changeset: 7f4c970a6b0c
Author:    aph
Date:      2014-09-09 18:50 +0100
URL:       http://hg.openjdk.java.net/aarch64-port/jdk8/hotspot/rev/7f4c970a6b0c

Fix thinko in Atomic::xchg_ptr.

! src/os_cpu/linux_aarch64/vm/atomic_linux_aarch64.inline.hpp