[macsec] Add eapol to copp config (sonic-net#8416)

This change enables the control packets of MACsec to be processed by CPU.

Author: byu343

files/image_config/copp/copp_cfg.j2

@@ -91,6 +91,10 @@
 		    "trap_ids": "ip2me",
 		    "trap_group": "queue1_group1"
 	    },
+	    "macsec": {
+		    "trap_ids": "eapol",
+		    "trap_group": "queue4_group3"
+	    },
 	    "nat": {
 		    "trap_ids": "src_nat_miss,dest_nat_miss",
 		    "trap_group": "queue1_group2"