gsutil: upgraded package to upstream

Upgraded net-misc/gsutil to version 4.47 on for python3.6 support.

BUG=chromium:1019337
TEST=CQ passes

Change-Id: Ia319c857f7dbd32a322a9aa474102e56ed29b7ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2033619
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
7 files changed