Adding new power test cases for PowerSubsystem.
Adding new power test cases for PowerSubsystem.

Signed-off-by: Marissa Garza <424011111c4cdcbbd5c0b9688f85ae729ad2081f@us.ibm.com>
Change-Id: I8c85d6d23e777512dff9fb3eda85ead04d289652

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation