[autotest] Support uploading a service key file to moblab
Add RPC to accept an uploaded key file and save it to
/home/moblab/.launch_control_key
Add a new tab in moblab setup page to allow user to upload a service key file.
BUG=chromium:570705
TEST=verify with a local moblab build
Change-Id: Ib54a6b707cb93bb5220e29ed6feeb854f5f4abe8
Reviewed-on: https://chromium-review.googlesource.com/321140
Commit-Ready: Dan Shi <dshi@google.com>
Tested-by: Dan Shi <dshi@google.com>
Reviewed-by: Simran Basi <sbasi@chromium.org>
8 files changed