[3/3][OpenZAP] gcc-4.5: Use zt_event_t instead of zap_oob_event_t to fix enum type mismatches.

libs/openzap/src/ozmod/ozmod_zt/ozmod_zt.c

@@ -978,7 +978,7 @@ ZIO_SPAN_POLL_EVENT_FUNCTION(zt_poll_event)
 ZIO_SPAN_NEXT_EVENT_FUNCTION(zt_next_event)
 {
 	uint32_t i, event_id = 0;
-	zap_oob_event_t zt_event_id = 0;
+	zt_event_t zt_event_id = 0;
 
 	for(i = 1; i <= span->chan_count; i++) {
 		if (zap_test_flag(span->channels[i], ZAP_CHANNEL_EVENT)) {