Contribution of PowerPC port (continuation of 422063005) - PPC dir update 2 - mark2

Contribution of PowerPC port (continuation of 422063005) - PPC dir update 2 - mark2

Rebase to latest and use branch created by git new-branch to get a patch that
only has the required changes.  Created new branch, reset to HEAD and then
cherry picked across the changes

	modified:   src/compiler/ppc/code-generator-ppc.cc
	modified:   src/compiler/ppc/instruction-selector-ppc.cc
	modified:   src/disassembler.cc
	modified:   src/ic/ppc/handler-compiler-ppc.cc
	modified:   src/ic/ppc/ic-compiler-ppc.cc
	modified:   src/ppc/assembler-ppc-inl.h
	modified:   src/ppc/assembler-ppc.cc
	modified:   src/ppc/assembler-ppc.h
	modified:   src/ppc/builtins-ppc.cc
	modified:   src/ppc/code-stubs-ppc.cc
	modified:   src/ppc/deoptimizer-ppc.cc
	modified:   src/ppc/disasm-ppc.cc
	modified:   src/ppc/full-codegen-ppc.cc
	modified:   src/ppc/macro-assembler-ppc.cc
	modified:   src/serialize.cc

R=danno@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/935383002

Cr-Commit-Position: refs/heads/master@{#26762}