Automation: Enable / Disable Watchdog

Added following testcases
- Disable Watchdog Timer And Verify Attributes
- Enable Watchdog Timer And Verify Attributes
- Modify And Verify Watchdog Timer Interval
- Modify And Verify Watchdog TimeRemaining
- Verify Watchdog URL When Host Is On And Off

Resolves openbmc/openbmc-test-automation#691

Change-Id: Ia074b4a149a96f84b11a0e78e764c38cae9e0812
Signed-off-by: Sridevi Ramesh <sridevra@in.ibm.com>
2 files changed