Fix behavior with some Lenovo Thinkservers

FRU data may return 0x81 on not-present devices and also
provide some rough event description in the case of an
unknown OEM SEL format.

Change-Id: Ia99c4981c06ed8e067a584896fde3880f08f8baa

pyghmi/ipmi/fru.py

@@ -132,8 +132,9 @@ class FRU(object):
             try:
                 self.fetch_fru(fruid)
             except iexc.IpmiException as ie:
-                if ie.ipmicode == 203:
+                if ie.ipmicode in (203, 129):
                     return
+                raise
             self.parsedata()
         else:
             raise TypeError('Either rawdata or ipmicmd must be specified')

pyghmi/ipmi/oem/lenovo.py

@@ -26,6 +26,9 @@ class OEMHandler(generic.OEMHandler):
         self.oemid = oemid
 
     def process_event(self, event):
+        if 'oemdata' in event:
+            event['event'] = 'OEM event: {0}'.format(repr(event['oemdata']))
+            return
         evdata = event['event_data_bytes']
         # For HDD bay events, the event data 2 is the bay, modify
         # the description to be more specific