[VOL-5558]:ONU discovery indication log improvement

Change-Id: I014e1837ea0b52b3c682ca0f85d3bebb945675f3
Signed-off-by: balaji.nagarajan <balaji.nagarajan@radisys.com>
diff --git a/internal/pkg/core/device_handler.go b/internal/pkg/core/device_handler.go
index ea6eedf..1cca3ad 100755
--- a/internal/pkg/core/device_handler.go
+++ b/internal/pkg/core/device_handler.go
@@ -521,7 +521,7 @@
 // nolint: gocyclo
 // readIndications to read the indications from the OLT device
 func (dh *DeviceHandler) readIndications(ctx context.Context) error {
-	defer logger.Debugw(ctx, "indications-ended", log.Fields{"device-id": dh.device.Id})
+	defer logger.Infow(ctx, "indications-ended", log.Fields{"device-id": dh.device.Id})
 	defer func() {
 		dh.lockDevice.Lock()
 		dh.isReadIndicationRoutineActive = false
@@ -1274,7 +1274,7 @@
 // doStateConnected get the device info and update to voltha core
 func (dh *DeviceHandler) doStateConnected(ctx context.Context) error {
 	var err error
-	logger.Debugw(ctx, "olt-device-connected", log.Fields{"device-id": dh.device.Id})
+	logger.Infow(ctx, "olt-device-connected", log.Fields{"device-id": dh.device.Id})
 
 	// Case where OLT is disabled and then rebooted.
 	device, err := dh.getDeviceFromCore(ctx, dh.device.Id)
@@ -3050,7 +3050,7 @@
 			}
 			cancel()
 		case <-dh.stopHeartbeatCheck:
-			logger.Debugw(ctx, "stopping-heartbeat-check", log.Fields{"device-id": dh.device.Id})
+			logger.Infow(ctx, "stopping-heartbeat-check", log.Fields{"device-id": dh.device.Id})
 			return
 		}
 	}