[SWDEV-391036 + SWDEV-392933] Fixes for VoltRead and ComputePart.

Updates:
    * VoltRead - needed to properly send out RSMI_STATUS_NOT_SUPPORTED
      when device does not have voltage hwmon files
    * ComputePart. - test failure was likely caused due to EvtNotif
      causing conflicts (unknown exactly why). Test passes when
      moving it ahead of the event notifier. Both API calls may have
      a system resource issue, TBD.
    * rocm_smi_example - now indicates when an API call
      returns RSMI_STATUS_NOT_SUPPORTED or
      RSMI_STATUS_NOT_YET_IMPLEMENTED. Allows example to fully complete
      on systems which may not provide support for all API calls.

Change-Id: I520b8584e078d412414e8e5797c664220a7e823a
Signed-off-by: Charis Poag <Charis.Poag@amd.com>

src/rocm_smi.cc

@@ -2351,8 +2351,13 @@ rsmi_dev_volt_metric_get(uint32_t dv_ind, rsmi_voltage_type_t sensor_type,
 
   // getVoltSensorIndex will throw an out of range exception if sensor_type is
   // not found
-  uint32_t sensor_index =
-     m->getVoltSensorIndex(sensor_type);
+  uint32_t sensor_index;
+  try {
+    sensor_index =
+      m->getVoltSensorIndex(sensor_type);
+  } catch (...) {
+    return RSMI_STATUS_NOT_SUPPORTED;
+  }
   CHK_API_SUPPORT_ONLY(voltage, metric, sensor_index)
 
   ret = get_dev_mon_value(mon_type, dv_ind, sensor_index, voltage);