ipv6_netif: fix prefix for address flags

Since NDP will introduce interface specific flags this naming might get
confusing

sys/include/net/ng_ipv6/netif.h

@@ -77,8 +77,8 @@ extern "C" {
  *          RFC 4291, section 2.6
  *      </a>
  */
-#define NG_IPV6_NETIF_FLAGS_UNICAST     (0x00)  /**< unicast address */
-#define NG_IPV6_NETIF_FLAGS_NON_UNICAST (0x01)  /**< non-unicast address */
+#define NG_IPV6_NETIF_ADDR_FLAGS_UNICAST        (0x00)  /**< unicast address */
+#define NG_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST    (0x01)  /**< non-unicast address */
 /**
  * @}
  */
@@ -267,7 +267,7 @@ ng_ipv6_addr_t *ng_ipv6_netif_find_best_src_addr(kernel_pid_t pid, const ng_ipv6
 static inline bool ng_ipv6_netif_addr_is_non_unicast(const ng_ipv6_addr_t *addr)
 {
     return (bool)(container_of(addr, ng_ipv6_netif_addr_t, addr)->flags &
-                  NG_IPV6_NETIF_FLAGS_NON_UNICAST);
+                  NG_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST);
 
 }
 

sys/net/network_layer/ng_ipv6/netif/ng_ipv6_netif.c

@@ -54,12 +54,12 @@ static int _add_addr_to_entry(ng_ipv6_netif_t *entry, const ng_ipv6_addr_t *addr
                     entry->addrs[i].prefix_len = NG_IPV6_ADDR_BIT_LEN;
                 }
 
-                entry->addrs[i].flags = NG_IPV6_NETIF_FLAGS_NON_UNICAST;
+                entry->addrs[i].flags = NG_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST;
             }
             else {
                 entry->addrs[i].prefix_len = prefix_len;
 
-                entry->addrs[i].flags = NG_IPV6_NETIF_FLAGS_UNICAST;
+                entry->addrs[i].flags = NG_IPV6_NETIF_ADDR_FLAGS_UNICAST;
             }
 
             return 0;