android: Upgrade bundletool to 0.8.0

This version supports keeping "master resources" in
the base module even when language-based splits are
enabled, which is required by [1] to fix WebView string
localization in app bundles.

[1] https://chromium-review.googlesource.com/c/chromium/src/+/1348053

BUG=902878
TBR=benmason@chromium.org

Change-Id: Id61d940911d7e237a42d663f7865dea1845e5e8d
Reviewed-on: https://chromium-review.googlesource.com/c/1411913
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: David Turner <digit@chromium.org>
Commit-Queue: David Turner <digit@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623652}
4 files changed