[cipd] Add support for ppc64 and ppc64le.

BUG=chromium:773857
TEST=None

Change-Id: I9deb95f7f6c30b5970d74bf3d43df2038db3087e
Reviewed-on: https://chromium-review.googlesource.com/721165Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Daniel Jacques <dnj@chromium.org>

cipd

@@ -35,6 +35,12 @@ case $UNAME in
   s390x)  # best-effort support for IBM s390x: crbug.com/764087
     ARCH=s390x
     ;;
+  ppc64)  # best-effort support for 64-bit PowerPC: crbug.com/773857
+    ARCH=ppc64
+    ;;
+  ppcle64)  # best-effort support for 64-bit PowerPC/LE: crbug.com/773857
+    ARCH=ppc64le
+    ;;
   aarch64)
     ARCH=arm64
     ;;

cipd_client_version

-git_revision:c8044eb23015ef176913df6f4493c13f67e4d44b
+git_revision:d2677a4477e59cb7de00f1fb8a00e96b1aaeb927