move package to v2 version as per go requirements after update to version 2.0

Change-Id: Iac4cc56f014f49e7d241357f8b7a5f4f3047bedc
diff --git a/avc.go b/avc.go
index 5242e3b..240fc7c 100644
--- a/avc.go
+++ b/avc.go
@@ -21,7 +21,7 @@
 	"encoding/binary"
 	"fmt"
 	"github.com/google/gopacket"
-	me "github.com/opencord/omci-lib-go/generated"
+	me "github.com/opencord/omci-lib-go/v2/generated"
 )
 
 type AttributeValueChangeMsg struct {