[Fuchsia] Use time-based package versions for published packages

Previously runner scripts were not updating package on the target device
as they should. Update the scripts to run pm-publish with -vt flag,
which enables time-based package versions and ensures that packages
are updated properly.

Change-Id: I5135da85e2d0c7303349ac9f99c2517e92975a35
Reviewed-on: https://chromium-review.googlesource.com/c/1428240
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Reviewed-by: Kevin Marshall <kmarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625025}
1 file changed