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

Change-Id: Id216765f347be95872b820b63133daef7d2a7bbb
diff --git a/internal/pkg/ofagent/ofagent.go b/internal/pkg/ofagent/ofagent.go
index 8bb0b94..1d225b2 100644
--- a/internal/pkg/ofagent/ofagent.go
+++ b/internal/pkg/ofagent/ofagent.go
@@ -28,8 +28,6 @@
 	"time"
 )
 
-var logger, _ = log.AddPackage(log.JSON, log.DebugLevel, nil)
-
 type ofaEvent byte
 type ofaState byte
 
@@ -203,7 +201,7 @@
 					state = ofaStateConnecting
 					go func() {
 						if err := ofa.establishConnectionToVoltha(p); err != nil {
-							log.Errorw("voltha-connection-failed", log.Fields{"error": err})
+							logger.Errorw("voltha-connection-failed", log.Fields{"error": err})
 							panic(err)
 						}
 					}()