Export flags needed for ifc_reset_connections API in netutils

Code using ifc_reset_connections api needs to have access to
predefined masks for reset_mask parameter

Change-Id: I90bc5e1b62ae4a88501c8ad4e353c0d93d319579
diff --git a/include/netutils/ifc.h b/include/netutils/ifc.h
index 67a4a45..3574f7f 100644
--- a/include/netutils/ifc.h
+++ b/include/netutils/ifc.h
@@ -34,6 +34,9 @@
 extern int ifc_enable(const char *ifname);
 extern int ifc_disable(const char *ifname);
 
+#define RESET_IPV4_ADDRESSES 0x01
+#define RESET_IPV6_ADDRESSES 0x02
+#define RESET_ALL_ADDRESSES  (RESET_IPV4_ADDRESSES | RESET_IPV6_ADDRESSES)
 extern int ifc_reset_connections(const char *ifname, const int reset_mask);
 
 extern int ifc_get_addr(const char *name, in_addr_t *addr);