VOL-2138 Use v2 import paths for voltha-lib-go;
migrate from voltha-go to voltha-lib-go

Change-Id: I3db6759f3c0cea3c2164889b3d36eae708b19bde
diff --git a/vendor/github.com/DataDog/zstd/.travis.yml b/vendor/github.com/DataDog/zstd/.travis.yml
index c5aa33d..629470c 100644
--- a/vendor/github.com/DataDog/zstd/.travis.yml
+++ b/vendor/github.com/DataDog/zstd/.travis.yml
@@ -1,9 +1,10 @@
+dist: xenial
 language: go
 
 go:
-  - 1.9.x
   - 1.10.x
   - 1.11.x
+  - 1.12.x
 
 os:
   - linux