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

Change-Id: Iaab59e919c0576e0143c1d9e0facbd2e63f96e1e
diff --git a/internal/pkg/config/common.go b/internal/pkg/config/common.go
new file mode 100644
index 0000000..bfa8e03
--- /dev/null
+++ b/internal/pkg/config/common.go
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package config Common Logger initialization
+package config
+
+import (
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+)
+
+var logger log.Logger
+
+func init() {
+	// Setup this package so that it's log level can be modified at run time
+	var err error
+	logger, err = log.AddPackage(log.JSON, log.ErrorLevel, log.Fields{"pkg": "config"})
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/internal/pkg/config/config.go b/internal/pkg/config/config.go
index a9fa936..49c52e1 100644
--- a/internal/pkg/config/config.go
+++ b/internal/pkg/config/config.go
@@ -22,8 +22,6 @@
 	"fmt"
 	"os"
 	"time"
-
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
 )
 
 // Open OLT default constants
@@ -85,10 +83,6 @@
 	GrpcTimeoutInterval         time.Duration
 }
 
-func init() {
-	_, _ = log.AddPackage(log.JSON, log.WarnLevel, nil)
-}
-
 // NewAdapterFlags returns a new RWCore config
 func NewAdapterFlags() *AdapterFlags {
 	var adapterFlags = AdapterFlags{ // Default values