oem-ampere: eventManager: Handle Watchdog sensor event

Handle `SoC Watchdog` status Sensor Event in Ampere's OemEventManager
class.

Change-Id: I8f74a5cf1209d81750103588bd1eff9388a668bd
Signed-off-by: Chau Ly <chaul@amperecomputing.com>
diff --git a/oem/ampere/event/oem_event_manager.hpp b/oem/ampere/event/oem_event_manager.hpp
index da56954..521a16b 100644
--- a/oem/ampere/event/oem_event_manager.hpp
+++ b/oem/ampere/event/oem_event_manager.hpp
@@ -32,6 +32,7 @@
     PCIE_HOT_PLUG = 169,
     SOC_HEALTH_AVAILABILITY = 170,
     BOOT_OVERALL = 175,
+    WATCH_DOG = 179,
 };
 
 namespace boot
@@ -332,6 +333,15 @@
     void handleVRDStatusEvent(pldm_tid_t tid, uint16_t sensorId,
                               uint32_t presentReading);
 
+    /** @brief Handle numeric sensor event message from Watchdog status sensor.
+     *
+     *  @param[in] tid - TID
+     *  @param[in] sensorId - Sensor ID
+     *  @param[in] presentReading - the present reading of the sensor
+     */
+    void handleNumericWatchdogEvent(pldm_tid_t tid, uint16_t sensorId,
+                                    uint32_t presentReading);
+
     /** @brief Handle numeric sensor event messages.
      *
      *  @param[in] tid - TID