[IPV6] ADDRCONF: Fix default source address selection without CONFIG_IPV6_PRIVACY

We need to update hiscore.rule even if we don't enable CONFIG_IPV6_PRIVACY,
because we have more less significant rule; longest match.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 6b361fc..4da6645 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1075,6 +1075,9 @@
 				if (hiscore.attrs & IPV6_SADDR_SCORE_PRIVACY)
 					continue;
 			}
+#else
+			if (hiscore.rule < 7)
+				hiscore.rule++;
 #endif
 			/* Rule 8: Use longest matching prefix */
 			if (hiscore.rule < 8) {