Add more tests to Android Mojo bot

Adds filter files for  chrome_public_test_apk and
webview_instrumentation_test_apk as well.

Bug: 880915
Cq-Include-Trybots: luci.chromium.try:linux_mojo
Change-Id: I05e4fd7cf7234b0c8c2be824421765f9406d5c14
Reviewed-on: https://chromium-review.googlesource.com/1208442
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590022}
7 files changed