[aarch64-port-dev ] hg: aarch64-port/jdk8/hotspot: Use gcc __clear_cache instead of doing it ourselves

[ed at camswl.com]

Changeset: 5a8c184c37d4
Author:    Edward Nevill edward.nevill at linaro.org
Date:      2014-04-03 22:51 +0100
URL:       http://hg.openjdk.java.net/aarch64-port/jdk8/hotspot/rev/5a8c184c37d4

Use gcc __clear_cache instead of doing it ourselves

! src/cpu/aarch64/vm/icache_aarch64.cpp
! src/cpu/aarch64/vm/icache_aarch64.hpp
! src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
! src/cpu/aarch64/vm/macroAssembler_aarch64.hpp