Add support for a clang toolchain on ppc64

This change allows a clang toolchain to be used on ppc64 hosts.

This change is part of the effort to upstream a set of patches
that allow chromium to build and run on ppc64le hosts available here:

Change-Id: I4496523f4948c675d4d1d8e529e0f4d5bbf99b8c
Commit-Queue: Dirk Pranke <>
Reviewed-by: Dirk Pranke <>
Cr-Commit-Position: refs/heads/master@{#635290}
2 files changed