oem-ampere: eventManager: Handle Soc Health sensor event

Handle `Soc Health` status Sensor Event in Ampere's OemEventManager
class. The handler will decode the event data, parse them to readable
info and log to Redfish Event Log with corresponding severity.

Change-Id: If14a20afe10aaa50d6d7c9d7ee8d0e5332c0817b
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 de925af..da56954 100644
--- a/oem/ampere/event/oem_event_manager.hpp
+++ b/oem/ampere/event/oem_event_manager.hpp
@@ -30,6 +30,7 @@
     PCI_D_VR_STATE = 110,
     PCI_A_VR_STATE = 115,
     PCIE_HOT_PLUG = 169,
+    SOC_HEALTH_AVAILABILITY = 170,
     BOOT_OVERALL = 175,
 };