[VOL-1385]: code changes to support ONU delete

Change-Id: I8be96e499ccdae29121e81a500a65d0d1a78e5d2
diff --git a/adaptercore/openolt_flowmgr.go b/adaptercore/openolt_flowmgr.go
index 2b8855a..578861d 100644
--- a/adaptercore/openolt_flowmgr.go
+++ b/adaptercore/openolt_flowmgr.go
@@ -2229,7 +2229,8 @@
 	defer f.lockCache.Unlock()
 	onu := rsrcMgr.OnuGemInfo{OnuID: onuID, SerialNumber: serialNum, IntfID: intfID}
 	f.onuGemInfo[intfID] = append(f.onuGemInfo[intfID], onu)
-	if err := f.resourceMgr.AddOnuInfo(ctx, intfID, onu); err != nil {
+	if err := f.resourceMgr.AddOnuGemInfo(ctx, intfID, onu); err != nil {
+		// TODO: VOL-2638
 		log.Errorw("failed to add onu info", log.Fields{"onu": onu})
 		return
 	}