Fix startup test setup sequences

This will run camera startup instrumentation test multiple
time to get average of cold startup metrics.
It reboots to clear dirty states in the previous run,
and also waits for device to cool down in between test runs
keeping test condition consistent.
Last, post the average of multiple test runs or -1 if
metric value is out of valid range.

Bug: 27229178
Change-Id: Ia84485d118bf7b50d2bd68bf5dfffff1cb55b6b9
2 files changed
tree: c1360d1d219d85993c1d0ebcd2de926c0782b80e
  1. src/