hg: jdk/jdk: 8214205: PPC64: Add instructions for counting trailing zeros

[gromero at linux.vnet.ibm.com]

Changeset: a959583eea01
Author:    mhorie
Date:      2018-11-22 21:43 -0500
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/a959583eea01

8214205: PPC64: Add instructions for counting trailing zeros
Reviewed-by: mdoerr, gromero

! src/hotspot/cpu/ppc/assembler_ppc.hpp
! src/hotspot/cpu/ppc/assembler_ppc.inline.hpp
! src/hotspot/cpu/ppc/globals_ppc.hpp
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/ppc/vm_version_ppc.cpp