[autotest] Convert all the suite control files to use an argument dictionary

Currently we manually pass individual variables into the reimage_and_run method
of the suite control file to launch suite. It is not scalable. If we want to
add new variable to the reimage_and_run, we need to manually add into every
suite control file.

Now convert all the suite control files to use arg_dict, an argument dictionary
inserted into the control file by site_rpc_interface.py, for the reimage_and_run
method. It will be more scalable.

BUG=chromium:492910
TEST=Pass dummy suite on moblab with the image built from this CL

Change-Id: I0f1aec42687dd6eeaa0081c3d98e931a90477c75
Reviewed-on: https://chromium-review.googlesource.com/273625
Tested-by: Shuqian Zhao <shuqianz@chromium.org>
Trybot-Ready: Shuqian Zhao <shuqianz@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Shuqian Zhao <shuqianz@chromium.org>
106 files changed