[VOL-2694] Use package specific logger instance in all log statements

Change-Id: Id216765f347be95872b820b63133daef7d2a7bbb
diff --git a/internal/pkg/openflow/client.go b/internal/pkg/openflow/client.go
index f43bb11..94ad645 100644
--- a/internal/pkg/openflow/client.go
+++ b/internal/pkg/openflow/client.go
@@ -31,7 +31,6 @@
 	"time"
 )
 
-var logger, _ = log.AddPackage(log.JSON, log.DebugLevel, nil)
 var NoVolthaConnectionError = errors.New("no-voltha-connection")
 
 type ofcEvent byte
@@ -246,7 +245,7 @@
 					}
 					go func() {
 						if err := ofc.establishConnectionToController(); err != nil {
-							log.Errorw("controller-connection-failed", log.Fields{"error": err})
+							logger.Errorw("controller-connection-failed", log.Fields{"error": err})
 							panic(err)
 						}
 					}()
@@ -282,19 +281,19 @@
 
 	// If the child context exists, then cancel it
 	if ofDone != nil {
-		log.Debugw("closing-child-processes",
+		logger.Debugw("closing-child-processes",
 			log.Fields{"device-id": ofc.DeviceID})
 		ofDone()
 	}
 
 	// If the connection is open, then close it
 	if ofc.conn != nil {
-		log.Debugw("closing-of-connection",
+		logger.Debugw("closing-of-connection",
 			log.Fields{"device-id": ofc.DeviceID})
 		ofc.conn.Close()
 		ofc.conn = nil
 	}
-	log.Debugw("state-machine-finished",
+	logger.Debugw("state-machine-finished",
 		log.Fields{"device-id": ofc.DeviceID})
 }