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>
diff --git a/data/variables.py b/data/variables.py
index e5306ea..e975b35 100644
--- a/data/variables.py
+++ b/data/variables.py
@@ -36,6 +36,7 @@
 BMC_STATE_URI = '/xyz/openbmc_project/state/bmc0/'
 HOST_STATE_URI = '/xyz/openbmc_project/state/host0/'
 CHASSIS_STATE_URI = '/xyz/openbmc_project/state/chassis0/'
+HOST_WATCHDOG_URI = '/xyz/openbmc_project/watchdog/host0/'
 
 # Logging URI variables
 BMC_LOGGING_URI = '/xyz/openbmc_project/logging/'