Improve network height estimation

src/metrics.h

@@ -65,7 +65,7 @@ void MarkStartTime();
 double GetLocalSolPS();
 int EstimateNetHeightInner(int height, int64_t tipmediantime,
                            int heightLastCheckpoint, int64_t timeLastCheckpoint,
-                           int64_t targetSpacing);
+                           int64_t genesisTime, int64_t targetSpacing);
 
 void TriggerRefresh();