[VOL-4701] Adding logs if disabling of UNI or POTS port fails while disabling the ONU

Change-Id: Ia06b621dea8550bacc31d30a0d0b39618888b9ee
diff --git a/internal/bbsim/devices/onu.go b/internal/bbsim/devices/onu.go
index 593be6a..bbed5d6 100644
--- a/internal/bbsim/devices/onu.go
+++ b/internal/bbsim/devices/onu.go
@@ -288,12 +288,26 @@
 
 				// disable the UNI ports
 				for _, uni := range o.UniPorts {
-					_ = uni.Disable()
+					if err := uni.Disable(); err != nil {
+						onuLogger.WithFields(log.Fields{
+							"onuId": o.ID,
+							"OnuSn": o.Sn(),
+							"UniId": uni.GetID(),
+							"err":   err,
+						}).Error("failed-to-disable-uni-port")
+					}
 				}
 
 				// disable the POTS UNI ports
 				for _, pots := range o.PotsPorts {
-					_ = pots.Disable()
+					if err := pots.Disable(); err != nil {
+						onuLogger.WithFields(log.Fields{
+							"onuId": o.ID,
+							"OnuSn": o.Sn(),
+							"UniId": pots.GetID(),
+							"err":   err,
+						}).Error("failed-to-disable-pots-port")
+					}
 				}
 
 				// verify all the flows removes are handled and