Initialize watchdogInterval

Static analysis showed that watchdogInterval can be left
uninitialized.  Right now it is only printed in the log, but
in case it is ever used more in the future, it is better to
initialize it.

Change-Id: Ic9da0a9e63d177ed54e989a25be0564d3daf8dc8
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>
diff --git a/include/watchdog_event_monitor.hpp b/include/watchdog_event_monitor.hpp
index 8b31118..fabd150 100644
--- a/include/watchdog_event_monitor.hpp
+++ b/include/watchdog_event_monitor.hpp
@@ -211,7 +211,7 @@
         }
 
         auto getWatchdogInterval = watchdogStatus.find("Interval");
-        uint64_t watchdogInterval;
+        uint64_t watchdogInterval = 0;
         if (getWatchdogInterval != watchdogStatus.end())
         {
             watchdogInterval = std::get<uint64_t>(getWatchdogInterval->second);