ip xfrm state: parse and print "icmp" and "af-unspec" flags

Convert to/from XFRM_STATE_ICMP and XFRM_STATE_AF_UNSPEC state flags.

Signed-off-by: Alex Badea <abadea@ixiacom.com>
diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
index 18250de..7dc36f3 100644
--- a/ip/ipxfrm.c
+++ b/ip/ipxfrm.c
@@ -780,6 +780,8 @@
 		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
 		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
 		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ICMP, "icmp");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_AF_UNSPEC, "af-unspec");
 		if (flags)
 			fprintf(fp, "%x", flags);
 	}