fix multi-suite runs: implement modem cleanup
After a suite was done, the modem object would linger. If two suites were run
consecutively, the first suite's modem objects would still log incoming SMS.
Add an object cleanup mechanism in the SuiteRun class. Start by adding a
cleanup() to the Modem object and subscribing created modems there.
Move the modem_obj() function into SuiteRun, there is no use of it being
separate, and it makes for better logging.
Change-Id: I0048d33e661d683a263c98128cd5c38b8d897dab
2 files changed