git: openjdk/mobile: 8234599: PPC64: Add support on recent CPUs and Linux for JEP-352

[duke]

Changeset: 1691abc7
Author:    Gustavo Romero <gromero at openjdk.org>
Date:      2019-11-21 17:10:26 +0000
URL:       https://git.openjdk.java.net/mobile/commit/1691abc7

8234599: PPC64: Add support on recent CPUs and Linux for JEP-352

Reviewed-by: mbaesken, mdoerr, adinn

! src/hotspot/cpu/ppc/macroAssembler_ppc.cpp
! src/hotspot/cpu/ppc/macroAssembler_ppc.hpp
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/ppc/stubGenerator_ppc.cpp
! src/hotspot/cpu/ppc/vm_version_ppc.cpp
! src/java.base/unix/native/libnio/ch/FileChannelImpl.c
! test/jdk/java/nio/MappedByteBuffer/PmemTest.java