VOL-2139 update tests to use voltha-lib-go instead of voltha-go

Change-Id: I7581bf051e8aede6c46abb894b14c5871b713378
diff --git a/tests/afrouter/tester/main.go b/tests/afrouter/tester/main.go
index 1037de0..ce07524 100644
--- a/tests/afrouter/tester/main.go
+++ b/tests/afrouter/tester/main.go
@@ -22,7 +22,7 @@
 package main
 
 import (
-	"github.com/opencord/voltha-go/common/log"
+	"github.com/opencord/voltha-lib-go/pkg/log"
 )
 
 func main() {