net: include the port when deciding a relay destination

In `PeerManagerImpl::RelayAddress()` we used just the hash of the
address that is being relayed to decide where to relay it to. Include
the port in that hash, so that e.g. `1.1.1.1:5555` and `1.1.1.1:6666`
get relayed to different peers. Those are two different, distinct
services after all.

Author: vasild

src/net_processing.cpp

@@ -1775,8 +1775,10 @@ void PeerManagerImpl::RelayAddress(NodeId originator,
     // Relay to a limited number of other nodes
     // Use deterministic randomness to send to the same nodes for 24 hours
     // at a time so the m_addr_knowns of the chosen nodes prevent repeats
-    const uint64_t hashAddr{addr.GetHash()};
-    const CSipHasher hasher{m_connman.GetDeterministicRandomizer(RANDOMIZER_ID_ADDRESS_RELAY).Write(hashAddr).Write((GetTime() + hashAddr) / (24 * 60 * 60))};
+    const uint64_t hash_addr{CServiceHash(0, 0)(addr)};
+    const CSipHasher hasher{m_connman.GetDeterministicRandomizer(RANDOMIZER_ID_ADDRESS_RELAY)
+                                .Write(hash_addr)
+                                .Write((GetTime() + hash_addr) / (24 * 60 * 60))};
     FastRandomContext insecure_rand;
 
     // Relay reachable addresses to 2 peers. Unreachable addresses are relayed randomly to 1 or 2 peers.