add ETH_P_MACSEC netinet/if_ether.h, new in linux v4.6
ethertype for macsec added in linux commit
dece8d2b78d19df7fe5e4e965f1f0d1a3e188d1b
diff --git a/include/netinet/if_ether.h b/include/netinet/if_ether.h
index 4802f09..4c2322b 100644
--- a/include/netinet/if_ether.h
+++ b/include/netinet/if_ether.h
@@ -51,6 +51,7 @@
#define ETH_P_8021AD 0x88A8
#define ETH_P_802_EX1 0x88B5
#define ETH_P_TIPC 0x88CA
+#define ETH_P_MACSEC 0x88E5
#define ETH_P_8021AH 0x88E7
#define ETH_P_MVRP 0x88F5
#define ETH_P_1588 0x88F7