insert SCTP_EVENTS in symbols_linux

gtests/net/packetdrill/symbols_linux.c

@@ -112,6 +112,9 @@ struct int_symbol platform_symbols_table[] = {
 #endif
 #if 0
 	{ SCTP_EVENT,                       "SCTP_EVENT"                      },
+#endif
+#ifdef SCTP_EVENTS
+	{ SCTP_EVENTS,                      "SCTP_EVENTS"                     },
 #endif
 	{ SCTP_PEER_ADDR_PARAMS,            "SCTP_PEER_ADDR_PARAMS"           },
 	{ SCTP_STATUS,                      "SCTP_STATUS"                     },