Adding platform_BootDevice to stress suite.

Adding this test to help root cause connection failures when running
firmware_ConsecutiveBoot tests in the stress lab.

TEST=None
BUG=chromium:396322

Change-Id: Ie3cc54990cfdf0c9d450bb80fdb6e4187c679972
Reviewed-on: https://chromium-review.googlesource.com/212944
Reviewed-by: Kris Rambish <krisr@chromium.org>
Tested-by: Yusuf Mohsinally <mohsinally@chromium.org>
Commit-Queue: Yusuf Mohsinally <mohsinally@chromium.org>
1 file changed