For NetBSD, use the same settings for PPC64 as for PPC when it comes to
integrated assembler, libc++ and libgcc. Set emulation for ld for both
platforms for correct -m32 handling.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215551 91177308-0d34-0410-b5e6-96231b3b80d8